All of the following statements are true regarding Staphylococci except -
A majority of infections caused by coagulase-negative Staphylococci are due to Staphylococcus epidermidis β-lactamase production in Staphylococci is under plasmid control Expression of methicillin resistance in Staphylococcus aureus increases when it is incubated at 37°C on blood agar. Methicillin resistance in Staphylococcus aureus is independent of β-lactamase production