Answer:
B. Sec. 27: The pilot yells at the cub: "Put
down that shovel!"
it is appropriate to break the rule that requires subjects joined by and to use a plural verb when either and neither are subjects. They always take singular verb.
For example :
Either of us is capable of doing the job
To find the direct object, find the subject "grandchildren," and the action verb "playing," then ask "whom or what" grandchildren are playing tag.
The answer is: B. tag