The correct answer is: C. However
The word “however” is used to introduce a statement that contrasts with
what has just been said. In this case, the sentence is saying that although Indian soldiers are generally honest, a few can be bribed. The word “however” helps to highlight this contrast.The other options are not as appropriate in this context. The word “though” can also be used to introduce a contrast, but it is not as strong as “however.” The word “as” is used to introduce a comparison, and the word “if” is used
to introduce a condition. Neither of these words would make sense in this sentence.Here is a rewritten version of the sentence that uses the word “however”:
However honest Indian soldiers are, a few can be bribed.
This sentence is more concise and easier to understand. It also makes the contrast between the general honesty of Indian soldiers and the fact that a few can be bribed more explicit.