Correct Answer:
D. Burma
The old name of Myanmar is Burma. The country was officially known as the Union of Burma until 1989 when the ruling military junta changed its name to the Union of Myanmar. However, the name Burma is still widely used by many.
- Siam is the historical name for modern-day Thailand.
- Ceylon is the former name of Sri Lanka.
- Malaya refers to the Malay Peninsula, which is a geographical region and part of modern-day Malaysia, not the old name of Myanmar.