Read the paragraph from the brochure about voting.

voting is one way to make your voice heard on important issues such as education, public safety, environmental issues, foreign policy, and other matters that affect you and your family. maybe you believe that the public schools in your area should receive more funding or the parks should be safer and cleaner. you can vote for a candidate who agrees with you, and even though it is just one vote, every vote counts. when you exercise your right to vote, you are participating in our democracy and honoring the many people who fought for the right to vote.

which is the most effective heading for this paragraph?

a. how to cast your vote
b. reasons why you should vote
c. lessons to be learned from voting
d. the way that votes are counted

B. Reasons why you should vote.

Explanation:

This paragraph enumerates plenty of reasons of why you should vote. For example:

"Voting is one way to make your voice heard(...)"

"(...) every vote counts...".

"(...) When you exercise your right to vote you are...".

Reasons Why You Should Vote sounds the most effective out of the other options.

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.