**Core Concept**
Adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine are catecholamines, a group of neurotransmitters involved in the body's 'fight or flight' response. They exert their effects through interaction with specific receptors in the body.

**Why the Correct Answer is Right**
These catecholamines stimulate their respective receptors, which are G protein-coupled receptors (GPCRs), leading to various physiological responses such as vasoconstriction, vasodilation, and increased heart rate. The primary receptors for these catecholamines are:
- Adrenaline (epinephrine): α1, α2, β1, β2, and β3 adrenergic receptors
- Noradrenaline (norepinephrine): α1, α2, β1, and β2 adrenergic receptors
- Dopamine: D1, D2, D3, D4, and D5 receptors

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the action of adrenaline, noradrenaline, and dopamine.
**Option B:** This option is incorrect because it does not specifically describe the mechanism of action of these catecholamines.
**Option C:** This option is incorrect because it does not accurately describe the type of receptors through which these catecholamines act.

**Clinical Pearl / High-Yield Fact**
Catecholamines play a crucial role in the body's response to stress and have various clinical applications, including the treatment of cardiac arrest and anaphylaxis.

**Correct Answer:** D. G protein-coupled receptors (GPCRs)