Choose the correct statement with regard to quantitative PCR?

• A. End-point PCR is favourable over real time PCR
• B. In real time PCR, quantification is done as the reaction is going on
• C. If the product measurement is done after the completion then the measurement is done by target sequence and no other factor affects it
• D. If the primers are available in limited amount, then the product obtained is proportional to the target sequence