You Can Exert More Force on the Pedals of a Bicycle

You can exert more force on the pedals of a bicycle if you pull up on the handlebars because

A) your center of gravity can be shifted to a position directly above the pedals,
B) the handlebars, in turn, pull down on you and this force is transmitted to the pedals,
C) rotational inertia is lessened,
D) rotational inertia is increased,
All of which illustrates
E) that equilibrium is center-of-gravity dependent.
F) the law of action and reaction.
G) inertia may be both linear and rotational.