Question

who is a part of the united nations organization, which is otherwise known as uno, who is concerned with international public health. who, is a part of the united nations organization, which is otherwise known as uno: who is concerned with international public health. who is a part of the united nations organization which is otherwise known as uno; who is concerned, with international public health. who is a part of the united nations organization, which is otherwise known as uno; who is concerned with international public health.

Explanation:

The original sentence has two independent - clauses. The first is "WHO is a part of the United Nations Organization, which is otherwise known as UNO" and the second is "WHO is concerned with international public health". These two clauses should be separated by a semicolon (;) for better punctuation. The first option has a colon which is incorrect for this purpose, and the second option has a comma in an incorrect place after "concerned".

Answer:

C. WHO is a part of the United Nations Organization, which is otherwise known as UNO; WHO is concerned with international public health.