Step 1: Word meaning.
"Immortality" means eternal life or the ability to live forever.
Step 2: Spellings check.
(A) Immortaltiye: Wrong ending.
(B) Emmurtality: Wrong prefix.
(C) Ummutorlity: Incorrect.
(D) Immortality: Correct spelling.
Step 3: Conclusion.
The correct spelling is (D) Immortality.