This is the 5112th most frequent Japanese word.
賛否
"賛否" means "approval and disapproval."
In this context, '賛否' (sanpi) represents the divided opinions or agreement/disagreement about the proposal.
この提案については、賛否が分かれるでしょう。
There will likely be divided opinions regarding this proposal.
Here, '賛否両論' (sanpi ryōron) expands on '賛否' to explicitly outline that there are both positive and negative opinions.
その映画は賛否両論だったが、私は楽しめました。
The movie had mixed reviews, but I enjoyed it.
In this case, '賛否' is used to denote agreement and disagreement explicitly in the context of survey questioning.