Answer: c) increasing accuracy
Step-by-step explanation:
According to the question, as the business of Tom shifted towards online website on eCommerce platform, he can extract the advantage of accuracy increment because customer do not have to write orders form rather it can be done on website through typing.
Thus, there would no issue in handwriting misunderstanding or decoding by order takers which occurred on offline platform. Supplies will be done with correctly as preciseness in order are present now.
Other options are incorrect because decrement in cost, increasing order quantity and approaching new customers are not the consequence of shifting to eCommerce websites through online mode.Thus, the correct option is option(c).