Kelvin is waiting for James. it is from Kelvin's perspective... he is clearly worried about someone who is going to turn up. James is the only person who is named.
Answer:
The best revision of the sentence is "The lawyer presented a clear argument to the jury (it was unbelievable how influenced they were by his case) in hope of winning the trial."
Explanation:
This sentence includes information that is not determining to its meaning, this information can be set apart by the use of parenthesis.
One of the uses of parenthesis is to enclose detail information or information that adds detail to the general sentence or clarifies pieces of information in the main part. It separates defining from non defining information.
The answer to your question is true
A problem is a situation that is generally unwelcome or harmful.
An issue is an important topic which could be a problem, generally debated.
A question is a sentence worded or expressed in order to elicit information, which could be in regards to a problem or an issue.
