**Core Concept**
Deep vein thrombosis (DVT) is a condition characterized by the formation of a blood clot in the deep veins of the body, often in the legs. The management of DVT involves anticoagulation, thrombolysis, and mechanical thrombectomy, among other strategies.

**Why the Correct Answer is Right**
The management of DVT usually includes anticoagulation with low molecular weight heparin (LMWH) or unfractionated heparin (UFH) to prevent clot extension and pulmonary embolism. Thrombolytic therapy with drugs like alteplase may be considered in severe cases of DVT. Mechanical thrombectomy using catheters or devices is also an option for patients with large, proximal DVTs.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it is too vague. However, if it suggests anticoagulation, it would be incorrect as there are multiple anticoagulants used in DVT management.

**Option B:** This is incorrect as it implies that DVT management is solely based on anticoagulation. While anticoagulation is a cornerstone of DVT management, other strategies like thrombolysis and mechanical thrombectomy may be necessary.

**Option C:** This is incorrect as it implies that DVT management is solely based on mechanical thrombectomy. While mechanical thrombectomy is a treatment option, it is not the only strategy used in DVT management.

**Option D:** This is incorrect as it implies that DVT management is solely based on thrombolysis. While thrombolysis is a treatment option, it is not the only strategy used in DVT management.

**Clinical Pearl / High-Yield Fact**
The Wells' score is a clinical prediction rule used to estimate the probability of DVT. It includes factors such as alternative diagnoses, D-dimer levels, and clinical symptoms like leg swelling and redness.

**Correct Answer:** B.