I NEED HALP What happens along a divergent boundary on the seafloor?

Multiple choice question.
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A. Continental mountain ranges form.

B. Oceanic plates are subducted into the mantle.

C. New ocean crust forms.

D. Ocean basins become smaller.

C. New ocean crust forms.

Explanation:

At divergent margins, it is true that new ocean crusts forms at the margins.

Along a divergent margin, two lithospheric plates are moving apart from one another.

Usually, when this occurs between two oceanic plates, the underlying mantle upwells to fill the void. The cooling and solidifying mantlic materials furnishes the formation of a new crust.

This is the oceanic crust.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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