Your answer is C) The ant is crawling at 2 feet per minute.
This is because in the function y = 2t + 5, the 2 represents the slope of the line, which means that for every 1 unit that you go across, you need to go 2 units up. Therefore, for every 1 minute, the ant gains 2 feet so it is crawling at 2 feet per minute.
I hope this helps! Let me know if you have any questions :)