A Rankine regenerative steam cycle employs two stages of steam extraction for feedwater heating. Boiler pressure and temperature are 1,200 psia and 1,050F, respectively. Saturated steam at condenser pressure has a temperature of 79F. Calculate the mass of steam removed from the turbine at first extraction.at first extraction. U u h = 383.4Btbh = 886.4Bt-b 5 m h = 1,528.9Btbh6 = 47.18t b 127 U. h = 1,322.7Btbh,= 210.7Bt U U h = 1,118.3Bt-bh = 380.0Btm A. 0.13 C. 0.15 B. 0.29 D. 0.26 M