Article question: I was responsible for devising a vision and (a) strategy...

[Gohansoo]

Hi English experts!

What is the difference between the followings?

A. I was responsible for devising a vision and strategy for the project.

b. I was responsible for devising a vision and a strategy for the project.

Aren't these identical? then why?

Puzzled....

Please help

[Mister Micawber]

Yes, synonymous. The speaker of A tends to think of the two nouns as a single process.
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Native English teacher at Mister Micawber's