Question

Which sentence has a sequence of three parallel phrases?

Willie felt dull on Wednesday, felt gloom on Thursday, and felt mournfully on Friday.
Willie felt dull on Wednesday, gloomy on Thursday, and mournful on Friday.
Willie felt dull on Wednesday, gloom on Thursday, and mournfully on Friday.
Willie was dull on Wednesday, felt gloomier on Thursday, and was mournful on Friday.

Answer 1

Parallel sentence is that in which parallel phrases using the same grammatical structure are being used. In this I believe the second option has three parallel phrases.

Willie felt dull on Wednesday, gloomy on Thursday, and mournful on Friday.