Rearrange the given jumbled group of words to make a meaningful sentence:

A. he admired the speed

B. the method adopted by him

C. the work and appreciated

D. with which he completed

Choose the correct answer from the options given below:

A, D, C, B

The correct answer is A, D, C, B.

He admired the speed with which he completed the work and appreciated the method adopted by him.