A45-year-old male was working on his roof when he fell approximately 12 feet, landing on his feet. he is conscious and alert and complains of an ache in his lower back. he is breathing adequately and has stable vital signs. you should
a) perform a rapid head-to-toe exam and immobilize his spine.
b) allow him to refuse transport if his vital signs remain stable.
c) obtain a glasgow coma score value and give him oxygen.
d) immobilize his spine and perform a focused secondary exam