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The average price for gasoline has climbed 33 cents since January to a dollar 88, a new all-time high.
Economists say that every ten-dollar increase in a barrel of oil pushes up consumer prices by at least half a percentage point.
The biggest factor fueling the spike in gas prices, the futures price of its chief ingredient, crude oil, has shot up well over 7 dollars so far this year, approaching 40 dollars a barrel, the highest since, October, 1990.
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[Question]
What was the average price for gasoline in January?
a) 1.88
b) 1.55
c) both of them are possible (differs by point of view)