What are the requirements of a state executive?

 and also Many executive offices, especially prominent ones like attorney general and secretary of state, are established in a state's constitution, which provides the basis for their authority and a description of their duties. Other offices commonly included in a state's constitution are treasurer and superintendent of schools. Other executive officers are established by statute rather than the state constitution. Such offices often include auditor, agriculture commissioner, natural resources commissioner, insurance commissioner and others. hope thats good

yellow fever and other tropical diseases

i am not 100% positive but i think it is is b. both are non-partisan jobs

i am pretty sure that members of congress have term limits, can be impeached, and are nominated through direct popular vote.