I don't need answers for a and b. But I just want to know what question (c) means when it says to conduct inference for the intercept.

2.33 Pines regression intervals. Refer to the regression model in Exercise 2.32 using the height in 1996 to predict the height in 1997 for pine trees in the Pines dataset. Ell Pines a. Find and interpret a 95% condence interval for the slope of this regression model. b. Is the value of 1 included in your condence interval for the slope? What does this tell you about whether or not the trees are growing? c. Does it make sense to conduct inference for the intercept in this setting? Explain