Suppose That Jupiter Had Never Existed,and There Was No Planet

Multiple Choice

Suppose that Jupiter had never existed,and there was no planet in our solar system between Mars and Saturn.How would we expect this to have affected Earth?

A) Earth's orbit would have been unstable,and our planet would have spiraled into the Sun.
B) There would not have been any effect,since Jupiter is in the outer solar system and Earth is in the inner solar system.
C) Earth would have been hit by many more comet impacts.
D) There would be no water on Earth.