Answer:
C.
Explanation:
I'm not completely sure. I haven't read Grandpa's Beat-up Banjo but in David and Goliath, David (young human) goes up against Goliath (really big giant). Goliath has a sword and shield but all David uses is a rock and a sling.
Everyone doubts that he'll win until he uses the sling to shoot the rock and at least knocks out Goliath, a goal none of the soldiers had been able to achieve.
Answer:
It'a difficult to get to school and learn with no supplies.
I think that's the answer at least. I hope this helps. :3
Answer:
The man opened the gate and came in.