Final answer:
Esau was supposed to receive Isaac's blessings as he was the firstborn, but Jacob, with Rebecca's help, deceitfully obtained the blessings meant for his brother Esau.
Step-by-step explanation:
The son that was supposed to get Isaac's blessings was B) Esau. In the tradition of the time, the firstborn son, which in this case was Esau, would typically receive the father's blessings and the birthright. However, through a series of events involving Jacob's deception orchestrated by his mother Rebecca, Jacob actually received the blessings that were intended for Esau. Thus, the story found in the Bible highlights themes of family dynamics, deception, and the consequences of such actions.