Answer:
Plural
Explanation:
When there is more than 1 subject and more than one verb
I would have to say black, because it just fits with most creepy books. Sorry if you can't figure out an explanation.
"I need to gather all these relevant information about this assignment.”
“I can do this assignment by myself. I don’t need to work with anyone else.”
"I need a detailed plan in order to complete this assignment."
“I’ll brainstorm how to do this assignment and then just jump and begin with whatever part interests me most.”