The correct options are
A <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
China
D <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
Myanmar
China and Myanmar, our neighbouring countries, are not a part of South Asia or the Indian subcontinent. However, they had cultural and trade relations with ancient India. They have an important place in the study of ancient Indian history.