Why Does Traditional Contract Law View Any Kind of an Attempt

Why does traditional contract law view any kind of an attempt by offerees to change terms as constituting a counteroffer?

A) A material change to an original offer is disfavored by traditional contract law.
B) It changes the degree of the offeror's interest to contract.
C) Such an action implies a rejection of the offer by the offeree.
D) It puts the offeree in a dominant position,which is contrary to traditional contract laws.