Which answer is a correctly punctuated compound sentence?
a. The printer is out of both ink and paper we'll have to buy some.
b. The printer is out of both ink and paper; we'll have to buy some.
c. The printer is out of both ink and paper, we'll have to buy some.
d. The printer is out of both ink and paper and we'll have to buy some.
The semicolon or semi-colon (;) is a punctuation mark that separates major sentence elements. A semicolon can be used between two closely related independent clauses, provided they are not already joined by a coordinating conjunction.