Meaning of go to pieces

[Rich7]

Test No. incompl/inter-88 "Simple Present (5)", question 6

They thought I would go to ..........

(a) parts
(b) sections
(c) particles
(d) pieces

Test No. incompl/inter-88 "Simple Present (5)", answer 6

They thought I would go to pieces.'

Correct answer: (d) pieces

Your answer was: incorrect
They thought I would go to parts.'
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what do this mean in this context?

[Alan]

This means lose control of yourself or in a word - panic In frightening situations someone does not know what to do and can't think sensibly or rationally and in this way is said to go to pieces.
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English as a Second Language
You can read my ESL story Present Simple

[Rich7]

thanks a ton my friend Alan.

[Annakarapet]

ALAN WHY PIECE NOT PARTS