Answer:
B the Underworld
Explanation:
Tartarus is part of the underworld or hell or both. Because Kronos the titan has been sent over there after the war. And if you read the Percy Jackson books Tartarus was the deepest part of the underworld hope you like my answer
"C. shall be coming" is the only future progressive verb form from the options listed. The other options are either past, present, or future perfect.
