The correct answer is - that it would be a mild and peaceful protest.
President Kennedy was hoping that the March on Washington would be a mild and peaceful one. On the other hand, he was fearing that the March on Washington will be an aggressive one and end up very badly. Because of his fears, he met with the organizers of the protest in order to reassure him that they will not cause any violence, and that they will try to keep the things in control so that there's no violence. The leaders of the protest were reassuring the president that they have no intentions of being violent, bu that they want their voices to be heard, and the African Americans to be treated the same way as the other people in the country, to have their rights, and the racism to be put in the past.
