Which two sentences are punctuated correctly?

1. some workers train dogs to become service dogs for people who need assistance others workers accompany the mobile spay and neuter project for inner-city pet owners.

2. that's the other thing i learned: being active is just as important as eating better foods.

3. over the years, many of us have read the words of henry b. adams: “a teacher affects eternity; she can never tell where her influence stops."

4. you know the feeling. it's minutes until the school bus comes, but you just rolled out of bed, threw on some clothes, barely brushed your teeth, and now you’re racing out the door to catch the bus.

The correct 2 sentences are:

2. Over the years, many of us have read the words of Henry B. Adams: "A teacher affects eternity; she can never tell where her influence stops."

1. That's the other thing I learned: being active is just as important as eating better foods.

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.