This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
BIRADS stage of 5 is 
Select and explain. 
A. Negative, B. Probably benign, C. Suspicious abnormality, D. Highly suggestive of malignancy
D: Highly suggestive of malignancy
Answer: D: Highly suggestive of malignancy 
Explanation: Ans. (d) Highly suggestive of malignancy(Ref. Sabiton 20th edition Page 831)* BIRADS - Breast Imaging Reporting and Data System)* This system is used to categorize the degree of suspicion o malignancy based on Mammography findings.* BIRADS-5 is highly suggestive of malignancyCategoryDefinitionFurther Plan0Incomplete assessmentNeed additional imagingslNegativeAdvised annual screening2Benign FindingRecommend annual screening3Probably BenignShort interval follow up4Suspicious of malignancyBiopsy must5Highly suggestive of malignancyTake appropriate action6Known biopsy proved malignancy