Me with this there are sooo much choose only 4

There are 8 of them so we need to choose the four best.

My choices are in no particular order.

4. Anytime the horizon narrows and widens, you have to take care in what you are seeing. It sounds to me like a pair of scissors or sheers that are also moving up and down. Pretty scarry.

5. Jagged with waves. Jagged!!  That's pretty descriptive.

6. Pointed like rocks? 5 and 6 both suggest a knife.

8. The waves were barbarously abrupt and tall [and each top froth making small boat navigation a problem.] I've added the last to make it clear that the sea was ominous.

c -invasion by the moroccans.

answer: my favorite subject is choir

explanation: it is choir becuase you can sing and have fun singing at the same time with your friends.