Sperm's Path to Fertilization

Steps:

• Sperm travel from testes through sperm duct to urethra for ejaculation.
• Upon ejaculation, sperm enter vagina.
• Sperm move through cervix into uterus.
• Sperm reach oviduct for egg fertilization.

Why A is correct:

• Sequence follows male (sperm duct, urethra) to female (vagina, cervix, uterus, oviduct) anatomy, where oviduct is the fertilization site per reproductive biology.

Why the others are wrong:

• B: Begins in uterus, reversing the entry path from male to female tract.
• C: Places urethra before sperm duct and skips vagina before uterus, violating ejaculation sequence.
• D: Mirrors C's errors with urethra before sperm duct and no vagina entry.

Final answer: A