According to the passage, rattlesnakes ______.A.play no role in controlling the population
According to the passage, rattlesnakes ______.
A.play no role in controlling the population of mice and rats
B.play a more important role than owls and hawks in reducing the number of mice and rats
C.play a certain role in limiting the population of mice and rats
D.play a less important role than owls and hawks in reducing the population of mice and rats