You respond to a construction site on a very hot summer day for a person​ "not acting​ right." You find a​ 44-year-old male patient seated in a work vehicle with the air conditioner on maximum. Coworkers state the patient was working for the last 2 hours pouring concrete when he started​ "speaking gibberish" and nearly collapsed. The patient is responsive to verbal stimuli. Your initial vital signs are blood pressure​ 90/60, pulse​ 136, and respiratory rate 24. The​ patient's skin is cool to the touch and​ pale, and his shirt is wet with visible salt rings. You should​ NEXT:

A. Loosen or remove clothing.
B. Administer oxygen.
C. Transport the patient.
D. Apply moist towels over cramped muscles.