The correct option is
A Least: 215,900,000, Highest: 260,700,00
Let us arrange them in order using place value table.
Let us arrange them in ascending order.
When we arrange in ascending order, the smallest number should be placed in the first place.
Among the four numbers, hundred millions is the same for all four numbers, at 2.
Hence, we have to compare the digits in the ten millions place.
Among the four digit 5, 4, 1 and 6, 1 is the smallest and 6 is the largest numbers.
Arranging 5, 4, 1, and 6 in ascending order, we get, 1 < 4 < 5 < 6
Hence, we get:
Hence, the least consumption is 215,900,000, in the third week and the highest is 260,700,000, in the fourth week.