The sputum specimen of a 70 year old male was cultured on a 5% sheep blood agar.The culture showed the presence of a-haemolytic colonies next day. The further processing of this organism is most likely to yield -

• A. Gram positive cocci in short chains, catalase negative and bile resistant
• B. Gram positive cocci in pairs, catalase negative and bile resistant
• C. Gram positive cocci in clusters, catalase positive and coagulase positive
• D. Gram negative cocci bacilli catalase positive and oxidase positive