A set of numbers is called as super increasing if

A. Each element is greater than previous element

B. Each element greater than sum of all the previous elements

C. Each element greater than the average of all elements

D. Each element lesser than the sum of all the elements

I had been asked this question in exam.

My question is taken from Public Key Cryptosystems topic in chapter Encryption and Decryption of Digital Communications

The correct option is B. Each element greater than sum of all the previous elements

Explanation: A set of numbers is called as super increasing if each element is greater than the sum of all the numbers lesser than it.