Which statement best describes a similarity between presidential and primarily democracies

One similarity is that for each form of government, the people elect their representatives. Both leaders roles (president and prime minister) are sorted in the executive branch of government.  

lancelot said to the beautiful ellen i c u r a b u t l n (i see you are a beauty lancelot was the greatest and worst of the knights who became the king's champion and undertook quests in the king's name. he became the adulterous lover of queen guinevere, and they had a son named galahad.