Which sentence contains an error in the use of end marks or commas?

a.
i don't think i want to go now;

b.
that's incredibly good news!

c.
don't forget to buy milk at the store.

d.
are you serious about that?

What do you think about world hunger? what could we do to make it better or fix it to where people are getting the things they need? what would you do?

I'm a principal of a primary nepali school.(class 1 to 5) there are only 3 teachers altogether.it is very difficult to teach them effectively.so one private institute asked me to write an application for 2 teachers with school minutes.i have no idea about it: 1. how to write school minutes and 2. how to write an application for the post of 2 teachers. me kindly.

What is the first step in summarizing a plot? restating central ideas and key details eliminating minor or unimportant details connecting ideas with logical transitions identifying important words and phrase