Step 1: Definition of "eradicate". Eradicate means to completely destroy or eliminate something. It originates from the Latin "radix," meaning "root," thus signifying to "pull out by the roots."
Step 2: Option assessment.
renew: To restart or begin again.
confuse: To obscure or make something difficult to understand.
evolve: To develop gradually.
remove: To take away or eliminate something.
Step 3: Synonym identification. "Remove" is the most fitting synonym for "eradicate," especially in the context of complete elimination.