You say the title or name first. Then you talk about WHAT your presentation is about.
Its called an introduction, make sure at the end of your introduction it leads to more stuff to talk about later on.
Answer:
B&C
Explanation:
A is incorrect because cars will cause more pollution not get rid of it
D is incorrect because you are taking the land to build more buildings not leaving room for agriculture
I are aggravated by they get on ur nerves