The correct answer is letter B. Visual aids should be used in expository presentation to supplement the presentation. However, the speaker must not solely depend on this because expository presentations should be quick and very concise in delivering the message that the person is conveying to his audience.
I think we also need to see the top
B is the correct answer. Between is used for 2 items. Among is used for 3+ items. In this case, a soccer team, has far more than 2 players.
-1 is the sum of 3+(-4) because you have to subtract the negative from the positive and then you will get -1.
