"~, which V" OR "~, which was what V"
Q: How did you learn to play the guitar?

A1: My mom was a guitarist, which influenced me.
A2: My mom was a guitarist, which was what influenced me.

What's the difference? Thanks in advance :D

Question

"~, which V"   OR    "~, which was what V"
Q: How did you learn to play the guitar?

A1: My mom was a guitarist, which influenced me.
A2: My mom was a guitarist, which was what influenced me.

What's the difference? Thanks in advance :D

Answer

I think, to sound more natural, we would say - 'My Mom was a guitarist - so I was inspired/influenced by her." The second sentence is more natural, but the first sentence sounds like there is something missing.

Answer

A2 says that the mother playing the guitar was THE influence (one influence). And A1 says that the mother playing the guitar was ONE of the influence (many influences).

-- They might both be able to be used depending on the context.