The writer is considering revising the preceding sentence by deleting the phrase “but my grandpa happily gave me hints for most of them” (placing a period after the word fallen). If the writer did this, the paragraph would primarily lose:

F. Information comparing the narrator’s knowledge of the woods with that of his grandfather.
G. Details describing the grandfather’s lifelong experience with wooded lands.
H. Details describing how the narrator and his grandfather passed the time on their walks in the woods.
J. Details revealing the narrator’s fondness of his grandfather through sharing his knowledge of trees.