Correct Option: B

welcome (Verb) : to say hello to somebody in a friendly way when he arrives.
ostracise (Verb) : to refuse to let somebody be a member of a social group ; stern
amuse (Verb) : to make somebody laugh or smile
entertain (Verb) : to invite people to eat and drink with you as your guests.
host (Verb) : to organize an event to which others are invited and make all arrangements for them.