Which of the following is the most accurate statement of the holding in Eckis v. Sea World Corp., 134 Cal. Rptr. 183 (Ct. App. 1976)? Question 6 options: a) It is immaterial that the activity causing the employee's injury was not related to the employee's normal duties b) It is immaterial that the circumstances surrounding the injury were unusual or unique. c) When an employee is injured during work hours engaging in an activity for the employer which benefits the employer's business, the remedy is workers' compensation. d) All of the above