I'll make you !

which is "not" a method to narrow the results of an internet search?

a: use an online bookmark
b: use key search connectors such as "and", "or", and "by".
c: use nouns as adjectives
d: use question marks when searching for an exact phrase

what is "not" a common purpose for a research report?

a: to entertain
b: to show cause and effect
c: to predict
d: to persuade