Answer:
Outreach
Explanation:
The three options provided are types of people i.e "children", "elderly", and "homeless". So, the fourth element too should be a type of people. Hence, "Finances", and "Conservation" are eliminated.
Out of "Students" and "Outreach", "outreach" would be better option;
Firstly because, children (age), elderly (age) homeless (location), and then fourth too should be about location i.e. "Outreach"
Secondly, because "students" is a sort of occupation, children may also be students. So, "Students" does not fit well with the three provided options.
Answer: "I am sorry that I won't be able to say everything I'd planned in my remaining time, but please let me conclude with . . ." Then state your most important idea and make your conclusion before time runs out.
Explanation: If you may be cut off by the moderator or the chairman, your audience will at least hear the conclusion you planned. If you are stopped ( and it DOES happen ) in mid-sentence or without making your most important point, the audience will see you as disorganized, or insensitive to the time limits, and may have an unfavorable impression of you-- and they will have missed the purpose of your speech.