In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
Now we do talk first about the disease in cases of bodily breakdown, and that for ________ excellent reason. Because, __________ there may be doubt about the way in which the body broke down, there is ____________ doubt at all about the shape in which it should be built up again. No doctor ___________ to produce a new kind of man, with a new arrangement of eyes or limbs. The hospital, by ____________, may send a man home with one leg less: but it will not (in a creative rapture) send him home with one leg extra. Medical science is content with the normal human body, and only seeks to restore it.
Because, __________ there may be doubt

Options

A. though
B. through
C. thorough
D. thought