The genome-wide comparative mRNA expression profile between normal and cancer cells can be studied using the microarray technology. The basic approach of this technology is

A. Hybridization of fluorescently labelled genomic DNA from human cells to normal and cancer cell cDNA immobilized onto two glass slides

B. Hybridization of fluorescently labelled cDNAs from normaland cancer cells to a single glass slide containing immobilized clones of human genomic DNA

C. Hybridization of fluorescently labelled cDNAs from normal and cancer cells to a single glass slide containing immobilized clones of human cDNAs

D. Hybridization of fluorescently labelled genomic DNA from normal and cancer cells to immobilized human cDNAs on a single glass slide

Answer: Option C