Question

All of the following became colonial territories EXCEPT

A. Laos.
B. Burma.
C. Vietnam.
D. Thailand.

Answer 1

Laos and Vietnam were part of French Indochina, which was a French colony. (Laos was added to the colony later, in 1893)

Burma was a British colony until 1948 - it was called British Burma. It was a province of British India.

The correct answer is the remaining option: Thailand