We've had our share of lively debates in the field of reading, but not on this particular topic: background knowledge. There is a virtual consensus that background knowledge is essential for reading comprehension. Put simply, the more you know about a topic, the easier it is to read a text, understand it, and retain the information. Previous studies (Alexander, Kulikowich, & Schulze, 1994; Shapiro, 2004) have shown that background knowledge plays an enormous role in reading comprehension (Hirsch, 2003).
My guess would be : He wants Rohan to concentrate on the race.
Dependent clause means it needs help. I remember it like this.. I need my girlfriend, without her I don't get anywhere so...
D. It's not a complete thought