what is the relationship between the strength of an electromagnet And the number of turns in the coil

Question

a The number of turns in the coil has no impact on the strength of the electromagnet
b As the number of turns, the coil increases, the strength of the electromagnet increases
c As the number of turns, the coil decreases the strength of the electromagnet increases

Answer 1

b As the number of turns in the coil increases, the strength of the electromagnet increases.