A factory has three machines M1, M2 and M3 producing 30%, 45% and 25% of the total output respectively. The percentages of defective items produced by these machines are 2%, 3% and 1.5% respectively. If one item is selected at random from the day’s production, what is the probability that it is defective?
a) 0.0245
b) 0.0195
c) 0.0233
d) 0.0217