Call My Bluff, ME style

[The Might]

You really are good at finding hidden terms.

His name was long remembered in the song of Rochon Methestel (Rider of the Last Hope) as Borondir Udalraph (Borondir the Stirrupless), for he rode back with the éoherë at the right hand of Eorl, and was the first to cross the Limlight and cleave a path to the aid of Cirion.

Good thing I know the UT in and out.

Anyway, since it's been 22 days, me is asking serious question:

The Stock-brook was:
A. A tributary of the Thistle
B. A tributary of the Shirebourne
C. A tributary of the Brandywine
D. A tributary of the Withywindle