Single/multi-select question: Does the sentence "For example, a 2007 North American rule change cost an estimated $500 million to $1 billion, and Utah State University economist William F. Shughart II has estimated the lost opportunity cost at around $1.7 billion USD." provide a valid answer to the question "What year did a change in DST policy cost North America somewhere between $500 million and $1 billion in extra work?"
OPT:
(i). yes;
(ii). no;
(i).