[求助]大全之补充35和40

35.   A star will compress itself into a white dwarf, a neutron star, or a black hole after it passes through a red giant stage, depending on mass.

(A) A star will compress itself into a white dwarf, a neutron star, or a black hole after it passes through a red giant stage, depending on mass.

(B) After passing through a red giant stage, depending on its mass, a star will compress itself into a white dwarf, a neutron star, or a black hole.

(C) After passing through a red giant stage, a star’s mass will determine if it compresses itself into a white dwarf, a neutron star, or a black hole.

(D) Mass determines whether a star, after passing through the red giant stage, will compress itself into a white dwarf, a neutron star, or a black hole.（D）

(E) The mass of a star, after passing through the red giant stage, will determine whether it compresses itself into a white dwarf, a neutron star, or a black hole.

请问这题答案为何是d，是谁修饰谁呢？

40.   The average weekly wage nearly doubled in the 1970’s, rising from $114 to $220, yet the average worker ended the decade with a decrease in what their pay may buy.

(A) with a decrease in what their pay may buy

(B) with what was a decrease in what they were able to buy

(C) having decreased that which they could buy

(D) decreasing in purchasing power（E）

(E) with a decrease in purchasing power

请问答案e的with 是不是只能修饰主语 the average worker，with前加了逗号跟没加逗号在句子中的作用有差吗？