Which sentence in the passage contains an error in punctuation A. Cardinals also known as redbirds do not migrate.
B. Since insects are few in winter, cardinals eat more berries and seeds during the cold season.
C .Cardinals are also known as song birds as they sing a variety of songs.
D. The bird is very popular and is the official bird of several states.

A

Explanation:

Correct Sentence:

Cardinals, also known as redbirds, do not migrate.

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.

c is the answer because first she would blush to make the reader wonder why which they find out in the next line.