Compared with the Composition of the Early Sun,the Composition of the Gas

Compared with the composition of the early Sun,the composition of the gas at the core of a star that has just become a red giant is:

A) very different since thermonuclear fusion has transformed all the hydrogen and helium into heavier elements.
B) very different; there is a lot of hydrogen but almost no helium left after thermonuclear fusion.
C) very different since thermonuclear fusion has transformed all the hydrogen into helium.
D) the same, with a higher fraction of hydrogen than helium since these stars were produced with the same initial material.