question_answer

Read the given paragraph and select the option which correctly fills the blanks. When stars run out of fuel in their core, they bloat into___ (i) ___giants. After a few million years, the outer layers begin to 'puff off', forming a planetary nebulae, leaving behind only the dead core of mostly ___ (ii) ___ fill and __ (iii) _. They then become ___ (iv) ___ dwarf stars.

A)

i-Blue

ii-Oxygen

iii-Carbon

iv-Red

B)

i-Red

ii-Methane

iii-Oxygen

iv-Blue

C)

i-White

ii-Carbon

iii-Methane

iv-Red

D)

i-Red

ii-Carbon

iii-Oxygen

iv-White