I believe it is A. Because it’s talking about how the salt is a danger and letter A talks about the danger of it.

Indirect speech:
The judge asked the lawyer if/whether he would be able to complete his arguments the next day.
Explanation:
The dialogue inside the inverted comma is a interrogative sentence or a question being asked by the Judge to the lawyer, the reporting verb 'asked' will be used.
And as the reporting verb is in past tense, the main verb will also be converted to past tense. The time mentioned 'tomorrow' will change into 'next day'
⛱️ 
Answer:
reoccur. Is the prefix of occur.
Answer:
complement
Explanation:
The above answer is the correct answer.
Crew members must <u>complement</u> each other. This is true because from the excerpt, we were told that "An alternative to the shower is a wobbly platform that two or three crew members have to stand on and jointly balance with hand controllers". This depicts that these crew members must complement each other if they must use the platform. Without such synergy in balancing the platform, they will not be able to use it.