What Was Union General George McClellan's Military Objective in the Peninsular

What was Union General George McClellan's military objective in the Peninsular campaign of 1862?

A) to capture Richmond, the Confederate capital, and bring the war to an end
B) to defend Washington, D.C., from a Confederate invasion
C) to force Confederate General Robert E. Lee to retreat into Virginia after his invasion of Maryland
D) to gain control of Virginia's seacoast and blockade its ports