what do the four outer planets have in common?

A. they are much larger than earth and are made mainly of hydrogen and helium.
B. They are about the same size of earth and are made mainy made hydrogen and helium
C. They are much larger than earth and are made mainly of Iron.
D. they are about the size of earth and are made manily of iron

Question

what do the four outer planets have in common? 

A. they are much larger than earth and are made mainly of hydrogen and helium.
B. They are about the same size of earth and are made mainy made hydrogen and helium 
C. They are much larger than earth and are made mainly of Iron.
D. they are about the size of earth and are made manily of iron

anonymous · Answer

The outer planets are called the Jovian planets or gas giants
A or B...probably B?

anonymous · Answer

A. they are much larger than earth and are made mainly of hydrogen and helium.