Step 1: Understanding epididymis structure.
The epididymis is a tightly coiled tube that connects the testis to the vas deferens and is divided into three regions: caput (head), corpus (body), and cauda (tail).
Step 2: Correct sequence.
Sperm produced in the testis pass first into the caput, then move through the corpus, and finally reach the cauda epididymis where they are stored before ejaculation.
Step 3: Conclusion.
The correct sequence is: Caput epididymis → Corpus epididymis → Cauda epididymis, which is option (1).