Hello, can anyone help me with this question?

a.   of carbon

b. of hydrogen

c. of oxygen

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number of particles.

To calculate the moles, we use the equation:

a) 1 mole of ethanol contains = of carbon

Thus 0.989 moles ethanol contains = of carbon

b) 1 mole of ethanol contains = of hydrogen

Thus 0.989 moles ethanol contains = of hydrogen

c)  1 mole of ethanol contains = of oxygen

Thus 0.989 moles ethanol contains = of oxygen

the answer is either b or c

i just learnt this recently but i need to look through my notes again