question_answer

Direction: Which of the phrases given against the sentences should replace the word/phrase given in bold in each sentence to make it grammatically correct? If the sentence is correct as it is given and no correction is required select 'No correction required' as the answer.

A crypto currency is a digital asset designed to work as a medium for exchange.

A)  as a medium of

B)  as medium for an

C)  as the medium for

D)  as the medium of an

E)  No correction required