Direction: Given below are four jumbled sentences. Select the option that gives their correct order.

A. It is a known fact that they perform tasks such as hunting, farming, and acting as security!

B. Further, dogs have an amazing sense of hearing and can hear sounds at four times the distance than humans can.

C. Typically, they are great helpers and can be trained to help people with disabilities.

D. Dogs are known as 'man's best friends for a reason.