Which of the following will react fastest(produce most product in a given time) and which will react at the highest rate? (a) 1 mol of A and 1 mol of B in a 1 L vessel; (b) 2 mol of A and 2 mol of B in a 2 L vessel; (c) 0.2 mol of A and 0.2 mol of B in a 0.1 L vessel.