Which of the phrases from the options (a), (b), (c) and (d) given below should replace the phrase printed in bold letters in the sentence to make the sentence grammatically correct? If the sentence is correct as it is, then choose “No correction required” as the answer.

The digital marketplace went on to become an importance line of business for the smartphone maker.

Correct option is A

The correct replacement for the statement is option (a). Here “importance” (noun) should be “important (adjective). Therefore the sentence will be,” The digital marketplace went on to become an important line of business for the smartphone maker.”