Which of the following lists the qualifications for u. s. senate as described in article i of the constitution? a. at least 25 years old, at least seven years a u. s. citizen, and a resident of the state chosen to represent/ b. at least 25 years old, at least nine years a u. s. citizen, and a resident of the state chosen to represent / c. at least 30 years old, at least seven years a u. s. citizen, and a resident of the state chosen to represent/d. at least 30 years old, at least nine years a u. s. citizen, and a resident of the state chosen to represent