Someone plz help me :(

I think it's A " The train must be able to complete the trip in six hours "

I think the answer will be A

Explanation:

The train must be able to complete the trip in six hours

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.