credible -- adj. reasonable to trust or believe

replace -- v. to take over a job for someone

poll -- n. an activity in which several or many people are asked a question or a series of questions in order to get information about what most people think about something

prepared -- v. ready and qualified to do a job

option -- n. something that can be chosen

respond -- v. to say or write something as an answer to a question, request of charge

ignorant -- adj. lacking knowledge or information
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