This question stuns me. Not sure which answer it is, but my best choice right now is probably the one you have selected in the image. A line graph would show the rate of plant growth over the course of a certain amount of days, resulting in which had the highest rates within that period. Might be wrong, but I hope you do well.
Digital network, as it refers to the series of connected and linked computing devices into a network as described in this question.
I have been running into the same problem, they haven't said anything but that might be the case.