Which statement is equivalent to the following?
number += 1;
a.
number = number + 1;
b.
number + 1;
c.
number = 1;
d.
none of the above

The correct answer is option(A) which is number=number+1

Explanation:

According to question number+=1  means  that number is incremented by 1 and store in the variable number this is simply equivalent to number=number+1

here their are two operator + and = means that firstly the number is incremented then after that it assign that incremented value to number variable.

well you didnt give us any options it looks like so im going to go with because cash cant be traced.