Any parent, guardian or custodian, or person in a position of trust who, with knowledge, sends or causes to be sent, or distributes, exhibits, possesses, displays or transports, any material visually portraying a child under his or her care, custody or control engaged in any sexually explicit conduct, is guilty of a felony, and, upon conviction thereof, shall be imprisoned in the penitentiary not more than four years, and fined not less than $800 nor more than $8,000.