The correct option is A Gubernaculum
Gubernaculum are embryonic structures which begin as undifferentiated mesenchyme and attaches to the caudal end of gonads to scrotal sac posteriorly.
Tendinous cord is with respect to heart muscles.
Scrotal ligament is the remnant of gubernaculum in a foetus.
The caput epididymis is the head of epididymis which is the sperm storage area which wraps around the superior and posterior edge of testis.
Thus, the correct answer is option A.