What is the most likely reason why cobb puts the section "pleasantly surprised" after the section "gift of 2,090 trees"?

to share details about dr. takamine's life after portraying him positively

to flashback to an incident readers will appreciate now that they know more about the trees' origins

to contrast dr. takamine's interactions with the cabby to his previous interactions with mrs. taft

to continue the chronological narrative of how the cherry trees arrived in washington, d.c.