The sentence to be completed is: "The President finally had to _____ the demands of the public for his resignation." Let's evaluate the options:
- ignore: Implies disregarding the demands. This contradicts "finally had to," suggesting a forced action.
- initiate: Means to start something. This is illogical as the demands were already made.
- accede to: Means to agree to a demand. This fits, indicating the President yielded to public pressure.
- condone: Means to accept wrongdoing. This is irrelevant to the context of resignation.
The correct completion is "accede to":
The President finally had to accede to the demands of the public for his resignation.