Turns out the one spreading the rumors was Hashimoto, who did so at the behest of Sakayanagi. Shortly thereafter, Sakayanagi appears before Class C and she informs them she has evidence regarding the rumors about Ichinose.
Are you trying to make me laugh?
هل تحاولين إضحاكي؟
Dass ich nicht lache.
No me hagan reír.
No me hagáis reír, por favor.
Arrêtez de me faire rire,
vous voulez ?
Estão tentando me fazer rir?
Это что за представление?