Ralph was recently offered a free ticket to the World Cup Soccer Match. Ralph could easily sell the ticket for $1,000. Ordinarily Ralph would not be willing to spend $1,000 of his own money on a ticket to the World Cup. If Ralph is completely rational in the economic sense, then he should: Select one: a. sell the ticket for less than $1,000. cross out b. neither attend the World Cup nor sell the ticket. cross out cross out c. attend the World Cup rather than sell the ticket. d. sell the ticket so as to not incur the opportunity cost of $1,000 cross out