Need some help with this math question?

The winning times for a race are shown in the table. Which answer describes the average rate of change from year 2 to year 4?
 
A) The winning time increased by an average of 0.475 second per year from year 2 to year 4.



B) The winning time increased by an average of 0.267 second per year from year 2 to year 4.



C) The winning time increased by an average of 0.8 second per year from year 2 to year 4.



D) The winning time increased by an average of 0.4 second per year from year 2 to year 4.
 

Link to a picture of the function table: https://imgur.com/a/eYyT8

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Thanks to anyone who helps.