A long time ago. In 6th grade. I am 10th grade
The answer is the king's murder
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
The first one seems to be correct.
•"If you get a hampster, you'll be responsible for it's care," my mother told me.
Hope this helps***