Select the Answer That Joins Each Pair of Simple Sentences

Multiple Choice

Select the answer that joins each pair of simple sentences with conjunctions or conjunctive adverbs correctly and is punctuated correctly. Stephen cleans the kitchen and bathroom once a week.
They always look cluttered and messy.

A) Stephen cleans the kitchen and bathroom once a week, so they always look cluttered and messy.
B) Stephen cleans the kitchen and bathroom once a week; however, they always look cluttered and messy.
C) They always look cluttered and messy, although Stephen cleans the kitchen and bathroom once a week.