Answer:
It is a countable noun.
Explanation:
"New project" is a countable noun, as the number of projects to which reference is made can be numerically determined. Thus, the number of projects that are being developed can be counted, be it 1, 5, 10, etc. In this way, it is not an estimated or presumptive number, but a specific or determinable number, which makes it a countable noun.
The answer is B because it doesn't have any commas and it wouldn't make sense without it. Looks like you got it correct.
An element in an effective argument is logical support because if you are trying to make you're argument effective, you need logical support to help your argument. Hope this helps!
I think it would be a because you don't use diagrams to show graphs because they are themselves a diagram
