Answer:
B. You receive a check for walking the neighbors dog.
Step-by-step explanation:
The check is a physical object that you need to cash in, in person. Due to it being a physical object and not including technology in the process of getting the check, it is B.
A may also be a in person transaction, but there is not enough info in A. to determine if its online/person, and since there is only one that is not a digital transaction, we must assume its B since that one is a physical transaction.