The process that produces Sonora Bars (a type of candy} is intended to produce bars with a mean weight of 56 gm. The process standard deviation is known to be 0.77 gm. A random sample of 49 candy bars yields a mean weight of 55.82 gm. Find the test statisticto see whether the candy bars are smaller than they are supposed to be. Selectone: CA. -1.645 OB. 71.636 0C. 4.677