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
Best prognosis of following: 
Select and explain. 
A. <1 cm Size, Node -ve, ER/PR +ve, Her 2 Negative, B. <1 cm Size, Node -ve, ER/PR -ve, Her 2 Positive, C. <2 cm Size, Node -ve, ER/PR +ve, Her 2 Negative, D. <2 cm Size, Node -ve, ER/PR -ve, Her 2 positive
A: <1 cm Size, Node -ve, ER/PR +ve, Her 2 Negative
Answer: A: <1 cm Size, Node -ve, ER/PR +ve, Her 2 Negative 
Explanation: Ans. (a) <1cm Size, Node -ve, ER/PR +ve, Her 2 Negative(Ref. Bailey and Love 27th edition Page 872)* ER/PR Positive is good prognosis* Her 2 positive carries high virulence of the tumor