We met each other while I was working in Italy?

[Nicole]

Hi, which answer is correct - I think it should be was working - c), shouldn't it? Thanks

We met each other while I ___________ in Italy.
a) worked
b) have worked
c) was working
d) have been working
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Life is for living.

[Mister Micawber]

Yes, you are right, Nicole.
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Native English teacher at Mister Micawber's