Select the most appropriate option to substitute the underlined segment in the given sentence. It is very hard for her to provide the necessities of her family .

Correct — A. Provide marks its recipient with to, with or for: provide something to someone, provide someone with something, provide something for someone. Of is not one of them.

The underlined segment uses of, which turns the family into a possessor of the necessities rather than the person receiving them, so the verb loses its recipient.

Swapping of for to restores the to-frame, and the plural necessities is kept, because the sentence is about everything the family needs rather than one thing: provide the necessities to her family → option (a).

Why the others are wrong

• (b)
  the necessities from her families — from marks a source, which makes the family the supplier instead of the recipient. The option also pluralises to families, inventing several families where the sentence has one.
• (c)
  the necessity of her family — This keeps the faulty of and shrinks the plural to necessity, narrowing the sentence to a single need. Two things are wrong with it, not one.
• (d)
  the necessities by her family — by marks the agent, the one who does the providing. The clause is active with her as the provider, so by her family would hand the job to the wrong party.

Preposition items in SSC are collocation items. The preposition is fixed by the verb it follows, not chosen for its meaning, so no amount of reasoning about of will produce to.

Provide, supply and furnish all mark the recipient with to, with or for: supply water to the village, furnish him with the details, provide a home for the children. None of them takes of.

Learn the frames with the verb and the item takes seconds.

The three wrong options here are each built by changing that one word, and two of them smuggle in a second change to the noun's number. Check both differences, not just the preposition.

Key facts

• Provide marks its recipient with to, with or for: provide something to someone, provide someone with something, provide something for someone. It does not take of.
• Supply and furnish follow the same pattern, as in supply water to the village and furnish him with the details.
• Necessities is the plural of necessity and means the things a person cannot do without.

Common traps

• Testing the options by ear, when provide the necessities of her family also sounds passable.
• Fixing the preposition and accepting an option that has quietly changed necessities to necessity.
• Reading by as a neutral connector, when it marks the agent and reverses who provides.

No directly related past PYQ was found.