C. The platypus, which is a mammal, has a bill like a duck and feet like an otter.
"which is a mammal" is an adjective clause. An adjective clause is used to describe a noun and usually begins with one of these words: that, when, where, who, whom, whose, which, and why. In this sentence, the adjective clause begins with "which" and describes the platypus, which is a noun.
I am pretty sure that it is it welcome
<span />
Yffugigiivufrsrstsgfhcjvugydydcjjvjghfdyydhcnvjgydtdchjvvjyfdyfuivvifuydyfjvuvugdtyfgi
I believe the answer is (B) because (A) has an improper use of the colon, and in (C) they put the semi colon after "we" which doesnt make sense because "We had a relaxing lunch we," is not a proper sentence.
George Washington was the first President of the United States of America.
