Final answer:
Clark's initial modification to the payment terms constituted a counteroffer and rejection of Baker's original offer. When Clark later agreed to the original terms, no contract was formed as Baker did not affirm that acceptance; hence, there is no contract.
Step-by-step explanation:
The question involves contract law and specifically deals with the issue of offer and acceptance in contract formation. Initially, Baker's offer to Clark was clear, definitive, and required acceptance by a particular date. When Clark responded with a telegram that included different payment terms, this constituted a counteroffer, which effectively rejected Baker's original offer. Upon Clark's subsequent indication during a phone conversation to accept Baker's original terms, no contract was formed because Baker did not accept Clark's oral acceptance. Therefore, the correct answer is D. There is no contract. Clark's modifications effectively rejected the October 1 offer, and Baker never accepted either of Clark's proposals.