What is comma , please someone understand me ​

In a raisin in the sun what does ruth tell walter: a. she’s not mad at him for going out drinking. b. he should invest in the liquor store. c. things between them are worse than she realized. d. he should be nicer to george

The local school board would like to change the school calendar so that students are in school year round. do you think this is a good idea or a bad idea? to you see which side you want to defend answer this question from both angles.

3. how could the following sentence be rewritten as an exclamatory sentence? how dangerous was the saber-toothed tiger? a. tell someone how dangerous the saber-toothed tiger was. b. the saber-toothed tiger was dangerous. c. the saber-toothed tiger was dangerous! d. no change is necessary. c. the saber-toothed tiger was dangerous!