What is the meaning of the word helm in the following excerpt from section 58?
58 - I do not know how long, the pleasure of it probably made it seem longer than it really was; -- but in the end he struggled free and jumped up and sprang to the wheel: a very natural solicitude, for, all this time, here was this steamboat tearing down the river at the rate of fifteen miles an hour and nobody at the helm!
A. The wheel a person uses to drive the boatB. The person who drives the boatC. A person learning to drive a boat