Magnetic field strength about a magnet is strongest where magnetic field lines are

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

With i really need the correct answer!