Step 1: Understanding the Question:
The question asks us to identify the core legal doctrine established by the historic English case Ashby v. White (1703).
Step 2: Key Principles and Statutory Provisions:
The key principles in question are:
1. Injuria sine damno: Legal injury/violation of a right without any actual physical or financial damage.
2. Damnum sine injuria: Actual damage or loss without any violation of a legal right (not actionable).
Step 3: Detailed Explanation and Analysis:
• In Ashby v. White, the plaintiff (Ashby) was a qualified voter who was wrongfully prevented from casting his vote by the defendant, a police officer (White).
• Even though the candidate for whom Ashby wanted to vote won the election anyway, and Ashby suffered no pecuniary or physical loss, he sued the officer for violating his legal right to vote.
• Chief Justice Holt held that the violation of a legal right is itself an actionable wrong, stating: "If the plaintiff has a right, he must of necessity have a means to vindicate and maintain it...".
• This established the doctrine of injuria sine damno (injury without damage), proving that tort actions can succeed simply on the proof of a violated legal right.
Step 4: Final Answer:
The case is the leading authority on "injuria sine damno", making Option A the correct answer.