**Core Concept**
The question is testing the contraindications of Oral Contraceptive Pills (OCPs), which are a type of hormonal birth control medication. OCPs contain a combination of estrogen and progesterone hormones that regulate ovulation and prevent pregnancy.

**Why the Correct Answer is Right**
OCPs are contraindicated in cases where there is a significant risk of thromboembolic events, such as in patients with a history of deep vein thrombosis (DVT), pulmonary embolism (PE), or stroke. This is because estrogen in OCPs can increase the risk of blood clot formation. Additionally, OCPs are contraindicated in patients with liver tumors or active liver disease, as estrogen can stimulate the growth of liver cells.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because OCPs are not contraindicated in patients with a history of hypertension. In fact, OCPs can be beneficial in managing polycystic ovary syndrome (PCOS), which is often associated with hypertension.
**Option B:** This option is incorrect because OCPs are not contraindicated in patients with a history of endometriosis. In fact, OCPs can be used to manage symptoms of endometriosis.
**Option C:** This option is incorrect because OCPs are not contraindicated in patients with a history of gallstones. In fact, OCPs may increase the risk of gallstones, but this is not a contraindication.

**Clinical Pearl / High-Yield Fact**
It's essential to note that OCPs can have varying levels of estrogen and progesterone, and the type of OCP used can impact the risk of thromboembolic events. For example, low-dose estrogen OCPs may have a lower risk of thromboembolic events compared to high-dose estrogen OCPs.

**Correct Answer:** D.