An Unknown Bacterial Species Is Recovered from a Sick Patient's

An unknown bacterial species is recovered from a sick patient's digestive tract.It has a membrane outside the cell wall that contains toxic lipids.This observation indicates

A) that the infection should be relatively easy to control with common antibiotics,because the pathogen is a gram- negative species.
B) that the infection may be quite threatening and difficult to control,because the pathogen is a gram- negative species.
C) that the infection may be quite threatening and difficult to control,because the pathogen is a gram- positive species.
D) that the infection should be relatively easy to control with common antibiotics,because the pathogen is a gram- positive species.