how are sino-japanese and southeast asian cultures similar?
a.
both are influenced by the principles of buddhism.
b.
both are influenced by the principles of hinduism.
c.
both have hindi as their main language.
d.
both have english as their main language.
e.
both are influenced by the principles of islam.

A.

Both are influenced by the principles of Buddhism.

Explanation:

they are highly influenced by the teachings and principles of Buddhism.

Nepal, Bhutan, SriLankan,China  (south east Asian)  have majority of the population who believe in Buddhism religion which they believe was started almost 3000 years ago. In Pakistan and India they have found some ancient civilization in the form of rocks and other antiques. But Pakistan and India Buddhism is almost considered nothing.

while Japanese people have majority who believes in Buddhism and they follow the teachings of Buddha.  Japaneses people also travel to these south east Asian countries to see and visit the Buddhism archaeologist sites and also invest for digging of these sites.