**Core Concept**
Sympathetic stimulation is a key component of the body's fight-or-flight response, primarily mediated through the sympathetic nervous system (SNS). This response is characterized by the release of catecholamines, such as norepinephrine and epinephrine, which act on various receptors to produce a range of physiological effects.

**Why the Correct Answer is Right**
Sympathetic stimulation leads to the dilation of the pupils (mydriasis), increased heart rate (tachycardia), and increased blood pressure due to vasoconstriction in peripheral blood vessels. This response is mediated through the activation of alpha-1 adrenergic receptors, which cause vasoconstriction, and beta-1 adrenergic receptors, which increase heart rate. Additionally, sympathetic stimulation leads to increased bronchodilation, which is mediated through the activation of beta-2 adrenergic receptors.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided.
* **Option B:** This option is not provided.
* **Option C:** This option is not provided.
* **Option D:** This option is not provided.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that sympathetic stimulation can lead to paradoxical bronchoconstriction in patients with asthma, making beta-2 agonists potentially dangerous in these patients.

**Correct Answer:**
(D)