which is the best way to complete the text? maddies writing is effective because it is __________ is able to…

Brief Explanations:

The semicolon is used to separate two independent clauses. "Maddie's writing is effective because it is economical" is an independent clause, and "she is able to communicate complex ideas with few words" is also an independent clause. The use of "because" in the third option makes the second - part a dependent clause which is incorrect in this context. A comma in the first option is not strong enough to separate the two independent - like thoughts.

Answer:

economical; she