Read the sentences. The inventor initially struggled to solve the problem. She discovered an ingenious solution. Which revision uses a coordinating conjunction to combine the sentences?

The inventor initially struggled to solve the problem, but she discovered an ingenious solution.

Explanation:

Coordinating conjunction is a type of conjunction used to join two or more words or phrases together. If there are two or more sentences as listed in this problem, we can use a coordinating conjunction to join the sentences together to form a single sentence. The revision of the two sentences using a coordinating conjunction is shown above.