76. What is the concentration of plasma glucose at 30 minutes according the following oral glucose tolerance experiment?(Glucose standard: 100 mg/dL with an absorbance of 0.48 in a 50 µl volume of cuvette)
(A) 0.75 mg/ml
(B) 1 mg/ml
(C) 1.2 mg/ml
(D) 1.5 mg/ml
(E) 1.25 mg/ml