Statement: For the third time in a row this week , the Indira Gandhi International Airport was put on a full alert today after Air India received an anonymous message that two terrorists laden with explosives were aboard its Mumbai-Delhi-Hong Kong flight.--- An authority of Indira Gandhi International Airport Assumptions: I. Anonymous message is not likely to be hoax call. II. Anonymous message is likely to be hoax call. III. Alertness might be helpful in reducing the menace.

• Only I and III
• Only II and III
• Either I or II and III
• Only III