Burst into tears means suddenly begin to cry. This answer is correct because the expression has a fixed figurative meaning in English. In an SSC idiom question, students should match the whole phrase with its accepted meaning rather than translate each word separately.

• Classroom example: Burst into tears can refer to a situation involving suddenly begin to cry.
• Story example: A writer may use Burst into tears when describing a situation involving suddenly begin to cry.
• Exam example: When a sentence contains Burst into tears, choose the meaning “suddenly begin to cry.”