Final answer:
The resting heart rate of a 34-year-old with a heart rate reserve of 75 is closest to 109 bpm based on the estimated maximum heart rate equation.
Step-by-step explanation:
The resting heart rate of a 34-year-old female with a heart rate reserve of 75 can be determined by understanding the relationship between heart rate reserve (HRR), resting heart rate (RHR), and maximum heart rate (MHR). The heart rate reserve is the difference between the maximum and resting heart rate. Since normal maximum heart rates can be estimated by subtracting an individual's age from 220, a 34-year-old's maximum heart rate is approximately 220 - 34 = 186 bpm. Therefore, if the heart rate reserve is 75, the resting heart rate can be found by subtracting the heart rate reserve from the maximum heart rate: 186 - 75 = 111 bpm. Considering the options provided and the calculations, none of the options exactly match 111 bpm. However, the closest option would be Option 3: 109 bpm, as it is the nearest to our calculated result.