Which of the following expresses the correct average characteristics and composition of semen?
a. volume, 4 mL; sperm count; 20-100 million/mL
b. volume, 0.5 L; sperm count, 10-100 million/mL
c. volume, 1 mL; sperm count, 200-600 million/mL
d. volume, 4.5 mL; sperm count, 5-10 million/mL
Answer: a. volume, 4 mL; sperm count; 20-100 million/mL
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