Which correctly links the independent clauses in this compound sentence from section 7? A) His travels were sometimes in lands never before visited by Europeans; he had many unique adventures with the almost unknown tribes of Asia. B) His travels were sometimes in lands never before visited by Europeans; so he had many unique adventures with the almost unknown tribes of Asia. C) His travels were sometimes in lands never before visited by Europeans: so he had many unique adventures, with the almost unknown tribes of Asia. D) His travels were sometimes in lands never before visited by Europeans, so, he had, many unique adventures with the almost unknown tribes of Asia.

The answer is A; the rest have significant grammar errors.

A) His travels were sometimes in lands never before visited by Europeans; he had many unique adventures with the almost unknown tribes of Asia.

Explanation:

Option A is the correct answer because here the two sentences are correctly linked with a semicolon. Semicolons are used to link two independent clauses closely related to each other that are not linked with a conjunction such as and, but, or, nor, for, yet, or so. In the sentence, the first clause His travels were sometimes in lands never before visited by Europeans and the second one he had many unique adventures with the almost unknown tribes of Asia have closely related ideas, so either a conjunction or a semicolon (not both at the same time) are suitable to join the clauses.