The correct option is B 28 oz
The given sequence represents the amount of soup used for 4 days.
The sequence is 4, 8, 12, 16.
Difference between the consecutive terms = 4
Hence, we have to add 4 to find the next term.
Hence, we get 4, 8, 12, 16, 20, 24, 28.
Hence, by the 7th day, 28 oz of soup would have been consumed.