The correct option is C In
Preposition 'in' is used to show a state or condition. Here, the sentence refers to the condition of 'trouble,' so 'in' would be used here. Hence, Option A is the correct answer as the usage of ‘in’ brings out the intended meaning of the sentence by implying that the subject lands up amidst trouble. Preposition 'on' means 'on the top of' or 'on the surface of,' 'with' means 'in the company or presence of somebody/something,' and 'of' is used to indicate reference or amount generally. So, Options B, C and D cannot be used as they would not bring out the intended meaning of the sentence and render the sentence meaningless.