Final answer:
Athena is the goddess who assists Odysseus and Telemachus and advocates for them on Mount Olympus.
Step-by-step explanation:
The goddess who often assists Odysseus and Telemachus and speaks up for them in the councils of the gods on Mount Olympus is B) Athena. Athena, known for her wisdom and strategic warfare, is a staunch ally of Odysseus throughout his journey as described in Homer's epic, the Odyssey. She provides guidance and support to both Odysseus and his son Telemachus, aiding in their respective quests and ensuring their eventual success.
Athena helps Odysseus and Telemachus throughout their journeys in the epic poem The Odyssey by Homer, providing guidance, protection, and support.