(a) A person is guilty of sexual assault in the first degree when:
(1) The person engages in sexual intercourse or sexual intrusion with another person and, in so doing:
(i) Inflicts serious bodily injury upon anyone; or
(ii) Employs a deadly weapon in the commission of the act; or
(2) The person, being fourteen years old or more, engages in sexual intercourse or sexual intrusion with another person who is younger than twelve years old and is not married to that person.
(b) Any person violating the provisions of this section is guilty of a felony and, upon conviction thereof, shall be imprisoned in a state correctional facility not less than fifteen nor more than thirty-five years, or fined not less than $1,000 nor more than $10,000 and imprisoned in a state correctional facility not less than fifteen nor more than thirty-five years.
(c) Notwithstanding the provisions of subsection (b) of this section, the penalty for any person violating the provisions of subsection (a) of this section who is eighteen years of age or older and whose victim is younger than twelve years of age, shall be imprisonment in a state correctional facility for not less than twenty-five nor more than one hundred years and a fine of not less than $5,000 nor more than $25,000.