CORRECT answer is option 3) i.e. is caught in.When two subjects are connected with 'as well as' the verb always agrees with the first subject.In the given sentence, the first subject is 'the commander' and that is a singular subject, hence, a singular verb i.e. 'is' will be USED for it. So, the correct substitution is 'is caught in'.Note: other words with which this RULE is FOLLOWED are: unlike, along with, with, besides, in addition to, but, etc.