Answer:
Option 1, 64 bulbs
Step-by-step explanation:
Given that Geoff planted dahlias in his garden. Dahlias have bulbs that
divide and reproduce underground.
I year production = 8 bulbs
II year = 16 bulbs
III year = 32 bulbs
Thus this follows a geometric progression with common ratio =2
Previous year bulb doubles for production next year
If this trend continues,
in the 6th year he would have = 2^6 = 64 bulbs.
So answer is option 1
64 bulbs.