Q: The terms ‘Ethereum, Solana, Polkadot and Tether’, sometimes mentioned in the news, refer to
(a)Cryptocurrencies
(b)Earth Observation Satellites
(c)Hypersonic Cruise Missiles
(d)Virtual Private Network service providers
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Q: The terms ‘Ethereum, Solana, Polkadot and Tether’, sometimes mentioned in the news, refer to