The given data represent a mineralized zone: Hole ID: A-05-30 Location: 388557 N, 6360161 E, 1479 Elev. Azimuth: 0 Dip: -90 From To Zn(%) 534.75 543.47 4.55 543.47 561.40 17.22 561.40 567.30 8.29 567.30 568.80 4.55 A) Calculate zinc composite grade for this zone. B) Using the unweighted average to represent the grade in the mineralized zone in drill hole A-05-30, rather than the composite grade, you would tend to overestimate the average grade. (True or False) C) For the mineralized zone in drill hole A-05-30, define the center location of the composite. The Easting is, the Northing is, and the Elevation is?