Idea Chunks - Is "while also" the same as "important/essential?"

[SN97]

My understanding: The question stem mentions that renewable energy sources are essential (must have) for reducing GHG emissions, while also (good to have) creating new job opportunities. Therefore, I did not mark option C as a valid idea chunk.

Can someone please help confirm my line of thinking?

[Max]

You’ve ascribed hierarchies of importance

However the question doesn’t require this.

Option C doesn’t ask for more important or less important.

The sentence tells us that renewable energy creates jobs.

Option C says renewable energy is important for creating jobs.

Option C is correct.