Final answer:
Cando Enterprises Inc. resorted to Contract Law to recover the amount it was owed by suing the client.
Step-by-step explanation:
Cando Enterprises Inc. resorted to D) Contract Law in order to recover the amount it was owed by suing the client. Contract law deals with the legal agreements and obligations between parties, and it provides recourse through the legal system when one party fails to fulfill their contractual obligations. In this situation, Cando Enterprises Inc. would rely on contract law to enforce the terms of the agreement and seek payment from the client.