The correct answer is (A) A long adventurous journey; a series of travels and adventures, particularly those filled with hardships, notable experiences, etc. Also, one of two ancient-Greek epics, which describe the adventures of Odysseus or Ulysses on their return from the siege of Troy. .

Odyssey comes from the Greek poem by Homer that describes the travels of Odysseus.

Examples of use:

• He looked back on his life, a wonderful odyssey, with some satisfaction.
• He is engaged in an odyssey of rebellion, although we do not know why.