Consider the Following Table

Consider the following table.Which option correctly fills the blanks in the table?

A) 1 = horizontal; 2 = downward-sloping; 3 = downward-sloping; 4 = downward-sloping
B) 1 = horizontal; 2 = horizontal; 3 = downward-sloping; 4 = downward-sloping
C) 1 = horizontal; 2 = horizontal; 3 = horizontal; 4 = downward-sloping
D) 1 = downward-sloping; 2 = downward-sloping; 3 = downward-sloping; 4 = downward-sloping