Choose the most logical order of sentences from among the four choices to construct a coherent paragraph.
A. Yet man has grown so dependent on them that they have become his masters.
B. Machines were made to be man's servants.
C. And a time may come when they will rule us altogether.
D. Already most people spend a great amount of time looking after the machines.

Correct option is A

The correct sequence is B, A, D, C.
Explanation:
1. B: The paragraph begins by introducing the purpose of machines, that they were made to serve man.
2. A: Highlights the irony that humans have become so dependent on machines that they are now the masters.
3. D: Adds supporting evidence, mentioning how people spend a significant amount of time maintaining machines.
4. C: Concludes by speculating that machines may completely rule over humans in the future.