The options in this question are missing; here are the options:
Read the sentence. Crafts once fulfilled useful purposes, now crafts are used mainly for decoration. Which revision most effectively corrects the comma splice?
A. Crafts once fulfilled useful purposes now crafts are used mainly for decoration.
B. Crafts once fulfilled useful purposes, but now crafts are used mainly for decoration.
C. Crafts once fulfilling useful purposes but now used mainly for decoration.
D. Crafts once fulfilled useful purposes, even now crafts are used mainly for decoration.
The correct answer is B. Crafts once fulfilled useful purposes, but now crafts are used mainly for decoration.
Explanation:
In the sentence "Crafts once fulfilled useful purposes, now crafts are used mainly for decoration" there is comma splice because a comma was used to separate two complete and independent sentences, which is a grammatical error. This error can be easily corrected by replacing the comma for a semicolon (;), which can join complete sentences; or by adding a conjunction such as "but" and leaving the comma because it is correct to have a comma followed by a conjunction to join sentences. This last option is used in sentence B.