Integers are irrational numbers. a. always. b. sometimes. c. never

Option (C) Never

Explanation:
Irrational numbers are the numbers that CANNOT be written as the fraction of integers. On the other hand, integers can ALWAYS be written as a fraction.

For Example:
10 (an integer) can be written in a fraction forms as: 10/1, 100/10 etc.

Hence all integers are NEVER irrational numbers.

Information:
Few might say that although Pi (3.141592653...) is an irrational number, but we can write it as 22/7. 22/7 is mere approximation we use for the ease of calculations, NOT an accurate fraction for Pi.

The answer to this question is c