Heliocentric theory:

was initially rejected
was supported by galileo
stated that the earth rotated around the sun
all of the above
which one

Option D, All of the above

Explanation:

The heliocentric model was first proposed by Nicolaus Copernicus but since his findings were based on previous studies and researches,  his theory of heliocentric  model of universe was rejected in its early phase. However, later on Galileo supported the Copernicus theory when he visualized the universe through his telescope. As proposed and seen by Galileo , it was established that Heliocentric model is the correct model of Universe where all  planet including earth rotate around the sun.  

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

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