Four forces act on an airplane as it flies through the air. These four forces
contribute to a stabilized, level flight.
-Drag
Thrust-
Weight
Which of the following is a pair of opposing forces?
O A. weight and drag
O C. lift and weight
OB. drag and lift
O D. thrust and lift

there are no contact forces mentioned on the list of choices that you've provided.

i would say

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.