42.Which sentence expresses (表達) an opinion (見解)?
(A) “You might like sugar-glazed doughnuts, doughnutsdipped in chocolate, or doughnuts
(B) “During World War I, homesick American soldiers inEurope were served doughnuts.”
(C) “In the 1920s, doughnut machines were invented.”
(D) “Today, doughnuts are available at markets, bakeries, andcoffee shops.”