Question

What is the best replacement of the underlined word the sentence below?

By looking at further analysis, scientists rely on formulas to arrive at conclusions for their research in math.
a.
tools
c.
books
b.
calculations
d.
methods
formulas is the underlined word

Answer 1

Its D. Methods. Not books smh

Answer 2

B could be correct not 100% sure what the answer is

Step-by-step explanation: