Solenoid №1 Has a Length L,cross-Sectional Area A,and N Turns

Multiple Choice

Solenoid №1 has a length L,cross-sectional area A,and N turns.Solenoid №2 has a length 2L,cross-sectional area 2A,and 2N turns.Which solenoid has the greater magnetic field at its center when equal currents are going through them?

A) №1
B) №2
C) Both have the same magnetic field.
D) Since it depends on the values of A and L,none of the above are correct.