The thing which the graph shows about spontaneous recovery is C. The response weakens suddenly.
What is a Graph?
This refers to the use of a diagram that shows the relationship between various variables on the x and y-axis respectively.
Hence, we can see that from the given graph, there is the depiction of the strength of CR and how it grows strong or weak over time and we can see that over time, the response weakens suddenly because of the downward slope.
Read more about graphs here:
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