What does c4 refer to in the function =match(c4,earnings,-1)?
a. the search row
b. the named range
c. the lookup value
d. the match type

The match type

Explanation:

This command is used to find the smallest value from lookyp array that is larger than look up value. lookup value in lookup array.

This command is look like:

=Match (Lookup Value,lookup array, match type)

in given example

lookup value is C4, Lookup Array is earnings and -1 is match type.

due to -1,

this function find the value from earnings that is smallest in array but larger than C4.

none because it's so obvious