11. Which statements are TRUE regarding tandem mass spectrometry (MS/MS)?(1) A tandem mass spectrometer consists of two m/z separators that are connected in series and separated by a collision cell.(2) Tandem mass spectrometry is especially useful with hard ionization techniques that produce a lot of fragmentation.(3) In precursor ion scan mode, we can identify which product ions come from a particular precursor ion. (4) Tandem mass spectrometers are capable of providing quantitative and qualitative information.(5) Selected reaction monitoring greatly improves the chromatographic signal-to-noise ratio because it is highly specific for the analyte of interest. Your answer: (A) (1), (2) and (3)；(B)(1),(3) and (4)；(C) (1) and (4)；(D) (1), (4) and (5)； (E) (2), (3) and (5).