String size question in quiz

#1

Q7. String STL 01

How do you find the size of a string ‘S’?

a-None

b-S.length()

c-s.len()

d-S.size()

Why the answer is not option d ?

#2

@ashish_meher
Hello ashish,
we can find size of string by both ways i.e S.length() and S.size().
here S.size() would be more general answer because it is supported by other stl as well like vector.
but s.length() is supported by string only may be that why they given answer as b.
in my opinion both b,d is correct

#3

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