Explanation

The verb 'make' in the causative construction 'make someone do something' is followed by the bare infinitive, without 'to'. The sentence says he made others see that the earth was not the fixed centre. 'To see' wrongly adds 'to', and 'seeing' is a gerund, neither of which can follow 'made' here. Hence the bare infinitive 'see' is correct, option (B).