**Core Concept**
The question tests the student's knowledge of local anaesthetics and their effects on blood pressure. Local anaesthetics can have varying effects on the cardiovascular system, with some causing vasodilation and subsequent hypotension, while others may have vasoconstrictive properties or stimulate the sympathetic nervous system, leading to increased blood pressure.

**Why the Correct Answer is Right**
The correct answer is likely a local anaesthetic with vasoconstrictive properties or one that stimulates the sympathetic nervous system, causing an increase in blood pressure. This could be due to the direct effect of the anaesthetic on vascular smooth muscle or its indirect effect through the stimulation of alpha-adrenergic receptors.

**Why Each Wrong Option is Incorrect**
**Option A:** May cause vasodilation, leading to a decrease in blood pressure.
**Option B:** Could have a similar effect, causing hypotension due to its pharmacological properties.
**Option C:** Might also lead to a decrease in blood pressure due to its effects on the cardiovascular system.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that some local anaesthetics can have significant cardiovascular effects, and their choice should be tailored to the individual patient's needs and medical history.

**Correct Answer:** D. Cocaine.