Step 1: Understanding the case context.
The judgment in A Rajan clarifies that actual gain or loss is immaterial, but the motive for making a gain is essential for insider trading.
Step 2: Applying to the question.
Here, the insider must have engaged in the trade with a profit motive, even if the profit is not ultimately realized.
Step 3: Elimination of incorrect options.
(A) is incorrect — having access to price-sensitive information is a condition, but the question asks for an essential prerequisite per the judgment.
(C) "Mens rea" is a general legal term for guilty intent, but the case focuses specifically on a profit motive, which is narrower.
(D) abstaining from dealing is the opposite of engaging in insider trading, so it is irrelevant. \[ \boxed{\text{(B)}} \]
Step 1: Identifying the relevant passage.
The passage clearly states: “the Tribunal found that the closing price of shares rose, after the disclosure of the information.”
Step 2: Interpreting the statement.
“Closing price rose” means there was an increase in the share price after disclosure. This indicates a positive market reaction.
Step 3: Eliminating incorrect options.
(A) Incorrect — Opposite of what the passage states.
(C) Incorrect — The passage confirms there was a change.
(D) Incorrect — There is no mention of delisting from the stock exchange.
Thus, (B) is the only correct choice. \[ \boxed{\text{B}} \]