Which of the following is a constitutional command that Seidman believes we
should keep?

Seidman, in the case of constitutional command, thinks/believes that there should be rights present for people that they should be allowed to follow any religion. - This can be explained: That the Congress should not be divided into 2 houses where people should are segregated on the basis of their religion.

Spanish:

Seidman, en el caso del mando constitucional, piensa/crees que debe haber derechos presentes para las personas que se les debe permitir seguir cualquier religión. - Esto se puede explicar: Que el Congreso no debería estar dividido en 2 cámaras donde la gente debería ser segregada en base a su religión.

Explanation:

Hope this helps. I am unsure if you even wanted this in Spanish?