Twenty-seven persons attended a party . Which one of the following statements can never be true ?
ক) There is a person in the party who is acquainted with all the twenty-six others .
খ) Each person in the party has a different number of acquaintances
গ) There is a person in the party who has an odd number of acquaintances
ঘ) In the party, there is no set of three mutual acquaintances .
