Ill give u brainliest pls

the tables below show four sets of data:

set a
x 1 2 3 4 5 6 7 8 9
y 10 9 8 7 6 5 4 3 2

set b
x 1 2 3 4 5 6 7 8 9
y 3 4 5 6 7 8 9 10 11

set c
x 1 2 3 4 5 6 7 8 9
y 8 6 5 4 3.5 3 2.5 2 2

set d
x 1 2 3 4 5 6 7 8 9
y 1 2.5 2.5 3 4 5 6 8 9

for which set of data will the scatter plot represent a positive linear association between x and y?

select one:
a. set a
b. set b
c. set c
d. set d