California's heat illness prevention regulation requires employers to provide training to supervisors and employees on:

Explanation

Section 3395(h)(1) sets out what the training must cover: the environmental and personal risk factors; the employer's procedures for water, shade, cool-down rests and access to first aid, and the employee's right to exercise these rights without retaliation; the importance of frequent small quantities of water, up to four cups an hour; acclimatisation; the types of heat illness, their signs and symptoms, and the appropriate first aid and emergency response; the duty to report symptoms immediately, in oneself or a co-worker; and how emergency services will be contacted and directed to the site. Option (a) is the wrong instrument as well as the wrong topic - subsection (b) defines temperature for this section as the DRY BULB reading taken in an unshaded area with the sensor shielded from direct sunlight. Option (c) is the employer's arithmetic, not the crew's training. Option (b) belongs to workers' compensation and comes after an injury.