This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Pathology, Subject name: Pathology
A 50-year-old woman with long-standing rheumatoid ahritis complains of weakness and fatigue. She states that her stools have recently become black after taking a new nonsteroidal anti-inflammatory drug (NSAID). Gastroscopy shows numerous superficial, bleeding mucosal defects. Which of the following is the most likely diagnosis? 
Select and explain. 
A. Acute erosive gastritis, B. Early gastric cancer, C. Helicobacter pylori gastritis, D. Menetrier disease
A: Acute erosive gastritis
Answer: A: Acute erosive gastritis 
Explanation: - Clinical features given suggests the diagnosis of Acute erosive gastritis. - Acute hemorrhagic gastritis-imbalance between protective and damaging factors Necrosis of mucosa is seen RISK FACTORS- Alcohol Drugs - NSAIDS and Anti-cancer drugs Uremia Stress- ICU, burns- curling ulcer clinical feature- Epigastric pain, nausea and vomiting.