The answer is false I believe.
C is the the right answer .
Five positives:
Learn to spell
Get further in life when you have that diploma
learn somethings that you will use later in life
Helps you know where you want to be like job wise.
Shows you responsibility by you having to go to school and do good to graduate
Five Negatives:
You don't just need a high school diploma to have a great paying job.
Not everything you learn can help you out in the real world
No more craft shops
To much going on with kids today in and out of schools making it harder for them to finish.
You miss out on actives in school because of trying to finish with high school.
Answer:
The new sentence would be: Most mammals have hair and all mammals have backbones, and they breathe air. All mammals are warm-blooded, and as a rule most mammals have all five senses.
Explanation:
Commas cant fix a run on sentence when it is long, also there is a period because this one long sentece can be divide into two sentences and still have detail.
