Which sentence uses the correct form of "their," "they're" and "there"?
A) They are an unbelievable collection of diamonds on display at the Houston Museum of Natural Science.
B) There is an unbelievable collection of diamonds on display at the Houston Museum of Natural Science.
C) Their is an unbelievable collection of diamonds on display at the Houston Museum of Natural Science.
Eliminate
D) Thier is an unbelievable collection of diamonds on display at the Houston Museum of Natural Science.