<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 50-year-old female teacher presents to the clinic with complaints of discoloration of the skin around the right ankle accompanied by itching. She began noticing it a month ago and the pruritus worsened over time. She also has some pain and swelling of the region every night, especially on days when she teaches late into the evening. Her past medical history is significant for diabetes mellitus type 2, for which she takes metformin. She lives with her husband and takes oral contraceptive pills. On examination, the physician observes hyperpigmentation of the medial aspect of her right ankle. The skin is dry, scaly, and edematous along with some superficial varicosities. Dorsiflexion of the foot is extremely painful. Peripheral pulses are equally palpable on both lower limbs. There is a small 2 cm ulcer noted near the medial malleolus with thickened neighboring skin and indurated edges. Laboratory studies show D-dimer of 1,000 μgL and HbA1c of 9. Doppler ultrasound of the lower extremity reveals an intramural thrombus in the popliteal vein. Which of the following is the most likely diagnosis in this patient?? A: Basal cell carcinoma, B: Stasis dermatitis, C: Diabetic foot, D: Atopic dermatitis, E: Cellulitis,  <response>: Based on the information provided in the question stem, the key findings are:- 50-year-old female with diabetes mellitus type 2- Hyperpigmentation, dry scaly skin, edema around right ankle - Pain and swelling in the evenings, worse after long days teaching- Small ulcer near medial malleolus with thickened, indurated edges- Doppler ultrasound showed popliteal vein thrombus- Elevated D-dimerThis presentation is most consistent with venous stasis changes. The chronic venous hypertension leads to skin discoloration, edema, and eventually ulcer formation. The location near the medial malleolus supports gravity-dependent changes. The elevated D-dimer and ultrasound findings confirm a diagnosis of deep vein thrombosis causing venous stasis. Of the choices given, stasis dermatitis is the most likely diagnosis. Basal cell carcinoma, diabetic foot ulcer, atopic dermatitis, and cellulitis do not fit with the overall clinical presentation.B: Stasis dermatitis 