10
Which sentence is written correctly?
A.
Usually, a battery of tests are required to determine if a person has had a heart attack.
B.
In North America, a range of mountains are often home to a variety of plants and animals.
C.
A standard deck of playing cards contain a total of 52 cards that are used in various games.
D.
The Dallas Symphony Orchestra, which was founded in 1900, warms up before each rehearsal.