Your title depends on what your text and reasons are specifically about and what the information you are given is, however I would choose whichever one fits your information the best. However, they all are talking about bicycles. I would most likely choose the health benefits of bicycling.
A commemorative speech has to do with celebrating something or someone. If you want to pay tribute to someone (and there isn't a specific topic you have to talk about), you should talk about someone important to you, someone whom you love and who inspires you - it could be a family member or a friend, or someone you look up to.
Is very simple, although the term "chaser" may not be as commonly used as it was when John Collier wrote his story. A chaser is a drink that is taken to follow the first alcoholic drink.
Answer:
A. Audio call from 911 accident calls.
C. Photos taken by the police at the scene of accident.
Explanation:
The photos taken by the police at the scene of accident are the most reliable evidence. This is the evidence which is not biased and there are very few chances that it will be altered. The photos provide a visual evidence which no one can deny in the investigation.