Answer:
The correct answer is option A. born helpless and in need of much parental care.
Step-by-step explanation:
Monogamy is condition of having relation with one partner or a single partner at a time. It is more common in birds and the mammals. The monogamy relations are believed to occur due to the young ones that need much parental care and born helpless in their early life.
Thus, the correct answer is option- born helpless and in need of much parental care.