Concept: The question tests on basics of Lcm/hcf

Solution:

The product of 2 numbers is the product of the LCM and HCF. Let the 2 numbers be a and b

Therefore a 8 b = 13 * 455 = 13 * 91 * 5 = 13 * 13 * 7 * 5

The only product of 2 numbers which lies between 85 and 125 = 13 * 7 = 91
Option B