请教语法题

jj825

1.        A firm that specializes in the analysis of handwriting claims from a one-page writing sample that it can assess more than three hundred personality traits, including enthusiasm, imagination, and ambition.

(A) from a one-page writing sample that it can assess

(B) from a one-page writing sample it has the ability of assessing

(C) the ability, from a one-page writing sample, of assessing

(D) to be able, from a one-page writing sample, to assess（D）

(E) being able to assess, from a one-page writing sample,



2.        A huge flying reptile that died out with the dinosaurs some 65 million years ago, the Quetzalcoatlus had a wingspan of 36 feet, believed to be the largest flying creature the world has ever seen.

(A) believed to be

(B) and that is believed to be

(C) and it is believed to have been

(D) which was, it is believed,（C）

(E) which is believed to be

bioalwayshuo

第一题我选D，第二题我选C。楼主有什么疑问。请详述。

jj825

For the first one, what's worng with C?
For the second one, i chose E?