[求助]请教987 的144

1.       As well as heat and light, the Sun is the source of a continuous stream of atomic particles known as the solar wind.

(A) As well as heat and light, the Sun is the source of a continuous stream

(B) Besides heat and light, also the Sun is the source of a continuous stream

(C) Besides heat and light, the Sun is also the source of a continuous streaming

(D) The Sun is the source not only of heat and light, but also of a continuous stream（D）

(E) The Sun is the source of not only heat and light but, as well, of a continuous streaming

请教C错在哪里？搜索了一遍，还没人问过这题，是不是太简单了

看一下OG吧, 是241题, 解释的很清楚.