Michael, who has been nervous and jumpy lately suddenly burst . . . . . . . . tears. A. into B. in C. on D. with

The correct answer is A.

Michael, who has been nervous and jumpy lately suddenly burst into tears.

“Burst into tears” is a common idiom that means to start crying suddenly and uncontrollably. It is often used to describe someone who is feeling overwhelmed with emotion, such as sadness, anger, or frustration.

The other options are not as idiomatic.

• “Burst in tears” could be interpreted as meaning to start crying while entering a room.
• “Burst on tears” is not a grammatically correct sentence.
• “Burst with tears” could be interpreted as meaning to be filled with tears, but it is not as common as “burst into tears.”

In conclusion, the correct answer is A.