Correct option is D
A: A child under 7 years of age is exempt from criminal liability under Section 82 IPC, so no offence is committed → III.
B: Death caused in a sudden fight without premeditation falls under Exception 4 to Section 300 IPC → I.
C: Death of a trespasser who is escaping can be justified under Exception 2 to Section 300 in certain circumstances → IV.
D: Death caused while defending property from mischief by fire is covered under the Right of private defence (Section 96-106 IPC) → II.
Correct mapping: A-III, B-I, C-IV, D-II.