Final answer:
A checking account offers the lowest interest rate compared to a savings account, certificate of deposit (CD), or money market account because it is designed for facilitating transactions rather than saving.
Step-by-step explanation:
Among the options given, a checking account typically offers the lowest interest rate. Banks offer checking accounts primarily to facilitate transactions, such as writing checks or using a debit card, and not as a means to grow your savings. Thus, they often pay little to no interest. On the other hand, a savings account usually pays some interest, which can be accessed through a visit to the bank or electronically. Higher interest can be earned through a certificate of deposit (CD) or a money market account, both of which typically offer better returns than a standard savings account; however, CDs come with the stipulation that the money must stay in the account for a specified period, or face a penalty for early withdrawal.