This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
CLED medium is used in preference in macconkey agar in relation to culture of organism involved in urine infection the reason is ? 
Select and explain. 
A. it prevents swarming of proteus, B. differentiates LF & NLF, C. PROMOTES staphylococus and candida growth, D. identifies pseudomonas
C: PROMOTES staphylococus and candida growth
Answer: C: PROMOTES staphylococus and candida growth 
Explanation: CYSTINE LACTOSE ELECTROLYTE DEFICIENT (CLED) AGAR * It&;s a semi-guantative method for urine. * It distinguish LF from NLF colonies and inhibit Proteus swarming. advantage over MacConky: It suppos the growth of ceain Staph, Strept and Candida that fail *To grow on Mac Conkey. * it contains- Lactose, L-cystine, Bromothymol blue, Trypton ref ; ananthanaryana 9th ed