The aeroplane (1)/ not only crashes (2)/ but also caught fire. (3)/ No error
Right Answer is: B
The error is in part (2) of the sentence. The sentence describes a past event when a plane got crashed and caught fire. In the sentence, part (B) is written in simple present which is incorrect. Like part (3), it should also be written in simple past form. So, the correct sentence would be “The aeroplane not only crashed but also caught fire”.
Note: Some aspirants may argue that we should keep part (C) in simple present and use the verb “caught” as “catches”. Doing this will be incorrect as it will show that getting crashed and catching fire is a general property of an aeroplane which is not the case.