The transfer time T of the disk is:(1) \(\frac{{2b}}{{rN}}\)(2) \(\frac{{rb}}{N}\)(3) \(\frac{{rN}}{b}\)(4) \(\frac{b}{{rN}}\)where: b = Number of bytes to be transferredN = Number of bytes on a trackr = Rotation speed in rps

• A. 1
• B. 2
• C. 3
• D. 4