**Core Concept**
Disseminated intravascular coagulation (DIC) is a complex disorder characterized by both widespread clotting and bleeding in the vascular system, triggered by various underlying conditions. It is often associated with severe infections, trauma, and obstetric complications, including postpartum hemorrhage.

**Why the Correct Answer is Right**
DIC involves the consumption of platelets and coagulation factors due to the formation of multiple small clots throughout the body. The laboratory findings in this question, including decreased platelets, prolonged prothrombin time (PT) and partial thromboplastin time (PTT), and increased fibrin split products, are characteristic of DIC. The consumption of platelets leads to thrombocytopenia, while the prolonged PT and PTT indicate a deficiency in coagulation factors. The increased fibrin split products are a result of the breakdown of fibrin clots.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not accurately describe the laboratory findings associated with DIC.

**Option B:** This option is incorrect as it does not involve a coagulopathy characterized by both thrombosis and bleeding.

**Option C:** This option is incorrect as it does not accurately describe the underlying pathophysiology of DIC.

**Clinical Pearl / High-Yield Fact**
DIC is a diagnosis of exclusion, and a thorough evaluation of the underlying cause is essential to initiate appropriate treatment.

**Correct Answer: B. Disseminated intravascular coagulation (DIC) is a complex disorder characterized by both widespread clotting and bleeding in the vascular system, triggered by various underlying conditions.**