Task: Question Answering
Input (English): Problem: the sum of all the digits of the integers from 18 to 21 inclusive is 24 ( 1 + 8 + 1 + 9 + 2 + 0 + 2 + 1 = 24 ). what is the sum t of all the digits of the integers from 0 to 99 inclusive ?
Options: a. 450, b. 810, c. 900, d. 1000, e. 1100
Output (English): c