Step 1: Understanding the Word:
The word means "acceptable or valid, especially as evidence in a court of law."
Step 2: Analyzing the Spelling:
The root is 'admit'. The adjective form uses '-ible', not '-able'. It also has a double 's'. The prefix 'ad-' is correct.
Let's check the options:
(A) Addmissable - Incorrect double 'd' and uses '-able'.
(B) Admisible - Incorrect, uses '-ible' but is missing the second 's'.
(C) Admissible - Correct spelling. It has a single 'd', double 's', and the '-ible' suffix.
(D) Addmissible - Incorrect double 'd'.
Step 3: Final Answer:
The correctly spelt word is Admissible.