What does the root “posit” mean?

Journalists must _______ personal political convictions to their professional commitments to fairness and balance. A: abdicate B: posit C: subjugate D: trick

根pon和它的变体pos、posit表示to place的含义，下列哪些单词是同源词？

词根pon和它的变体pos、posit表示to place的含义，下列哪些单词是同源词？