Hi $,$

i have checked this question in the tool before and i have been told that the right answer is A which is $2$ sample t$-$test however i have been marked as incorrect in the my academy study $.$

appreciate if an expert can check this for me please and let me know what is the correct answer?

question is

Bayre, Whyte & Rarebit $($BW&R$)$ are a legal practice who specialise in Domestic Conveyancing $($arranging mortgages for domestic dwellings$).$ the company are examining the VOC $-$ in particular how customers perceive their call centre. The call centre has two shifts and one question BW&R would like an answer to is: $"$Is one shift more polite than the other?"

All operators are instructed to ask customers at the end of the call if they have been courteously dealt with. The company has the results tabulated by shift.

Which statistical tool would be BEST to determine if one shift is statistically considered better than the other?

Select one:

A$)2$ sample t$-$test

B$)$ Linear correlation and regression

C$)2$ proportion test

D$)1$ proportion test

E$)$ NP chart