He always jumps . . . . . . . . the conclusion. A. with B. to C. on D. in

The correct answer is: to.

The word “to” is used to indicate a destination or goal. In this case, the speaker is saying that the person always jumps to conclusions. This means that they make assumptions about things without having all the information.

The other options are not as accurate. The word “with” is used to indicate association or accompaniment.

The word “on” is used to indicate location or position. The word “in” is used to indicate inclusion or containment.

In conclusion, the correct answer is “to” because it is the most accurate word to indicate the speaker’s meaning.