Which of the following are qualified corporate sponsorship payments? a. The advertiser's payment to the exempt organization results in the corporate logo appearing in the exempt organization's monthly blog post. Ob. The corporation's payment is determined by the number of likes on the exempt organization's Facebook page for the advertiser's products. c. The amount of the advertiser's payment to the exempt organization is contingent on the attendance at one or more events. Od. Only "The corporation's payment is determined by the number of likes on the exempt organization's Facebook page for the advertiser's products." and "The advertiser's payment to the exempt organization results in the corporate logo appearing in the exempt organization's monthly blog post