Which of the following statements is true about health insurance in Japan? Which of the following statements is true about health insurance in Japan? Employees are required to enroll in health insurance and employers are required to contribute to the cost of health insurance Employees are required to enroll in health insurance, but employers are not required to contribute to the cost of health insurance Employee health insurance enrollment is optional, but if they do enroll, employers must contribute to the cost of health insurance Employee health insurance enrollment is optional and employers have the option whether to contribute to the cost of health insurance