The correct option is
A Of
Option A: 'Of' indicates 'possession or connection'. It relates to the given sentence: acres and acres of palm groves and bamboo. Hence option A is correct.
Option B: 'In' refers to 'an inclusion within a space or limits'.
Option C: 'At' indicates 'a point or place occupied in space'.
Option D: 'For' indicates 'the object or purpose of'.
These meanings do not relate to the given sentence, hence options B, C and D are incorrect.