Different varieties of field daisies have numbers of petals that follow a fibonacci sequence. Three varieties have 13,21, and 347 petals.

How many petals do the next two varieties of field daisy have?

a. 42, 55

b. 47,60

c. 42,50

d. 55,89

The answer is letter d. The Fibonacci Sequence states to add the 2 previous number to get the next number starting with 1. So, 1 + 0=1, 1+1=2, 1+2=3, 2+3=5,3+5=8, 5+8=13, etc ...

I added 13+21 to get 34. Then add 21+34 to get 55. Then add 34+55 to get 89.