What are the normal resting vital signs for a mature mare?

The normal resting vital signs for a mature mare typically include a body temperature range of approximately 99 to 101 degrees Fahrenheit, a respiration rate of 8 to 16 breaths per minute, and a pulse rate between 28 and 44 beats per minute. Choice B, which lists a temperature of 100.5 degrees Fahrenheit, a respiration rate of 15 breaths per minute, and a pulse rate of 38 beats per minute, falls well within these established normal ranges for mature mares.

The temperature in choice B is at the higher end of the normal range, the respiration is comfortably within the normal range, and the pulse is also well within the acceptable limits. This combination of values reflects a healthy resting state for a mature mare, making it the most accurate representation among the given options.