A person is not able to see distant objects clearly. Statement - I : The person is suffering from Hypermetropia. Statement - II : The defect may have been caused due to excessive curvature of the eye lens or elongation of the eye ball. Statement - III: The defect can be corrected by using a concave lens of suitable power. Statement - IV : The defect can be corrected by using a convex lens of suitable power. Which of the following combinations of above statements is correct?