Question

which revision correctly combines these two sentences?
there are seven wonders of the world. one of the most famous is the great pyramid.
○ there are seven wonders of the world; and one of the most famous is the great pyramid.
○ there are seven wonders of the world; one of the most famous is the great pyramid.
○ there are seven wonders of the world, one of the most famous is the great pyramid.
○ there are seven wonders of the world and one of the most famous is the great pyramid.

Explanation:

When combining two independent clauses that are closely related (stating a set and then highlighting one member of it), a semicolon is the correct punctuation to connect them without a coordinating conjunction like "and" (which would be redundant here). Using a comma alone would create a comma splice, and using "and" with a semicolon is grammatically incorrect.

Answer:

○ There are seven Wonders of the World; one of the most famous is the Great Pyramid.