According the author what is the difference between the ocean and a watch?
A.
Opening a watch is simple. But getting inside every part of the ocean isn’t so easy.
B.
One can find out the problem of a watch just by looking at it. But as to the ocean, he can’t.
C.
Not like the ocean a watch is made to function just by a complicated system of gears.
D.
As long as the watch keeps ticking, you will know what time it is. The ocean is not the case.