Which of the following is incorrect about Data Collection?

• A. The two-color microarray uses multiple dyes at times
• B. The most common type of microarray protocol is the two-color microarray
• C. The cDNAs are obtained by extracting total RNA or mRNA from tissues or cells and incorporating fluorescent dyes in the DNA strands during the cDNA biosynthesis
• D. The expression of genes is measured via the signals from cDNAs hybridizing with the specific oligonucleotide probes on the microarray