The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A patient in an ICCU is on CVP line. His blood culture shows growth of Gram +ve cocci which are catalase positive and coagulase negative. The most likely etiological agent is:   (A) Staph. aureus   (B) Staph. epidermidis   (C) Streptococcus pyogenes   (D) Enterococcus faecalis
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