If the sum of n consecutive integers is 0, which of the following must be true?
I. n is an even number
II. n is an odd number
III. The average (arithmetic mean) of the n integers is 0
A. I only
B. II only
C. III only
D. I and III
E. II and III![]()
I. n is an even number
II. n is an odd number
III. The average (arithmetic mean) of the n integers is 0
A. I only
B. II only
C. III only
D. I and III
E. II and III