>>> a={5,6,7}
>>> sum(a,5)

>>> a={5,6,7}
>>> sum(a,5)

A. 5
B. 23
C. 18
D. Invalid syntax for sum method, too many arguments

Solution

B. 23

Explanation

The second parameter is the start value for the sum of elements in set a. Thus, sum(a,5) = 5+(5+6+7)=23.