Fill in the blanks in each of the following statements:

a. The ratio of successive Fibonacci numbers converges on a constant value of 1.618…, a number that has been called the                                                      or the                  .

b. Iteration normally uses an iteration statement, whereas recursion normally uses a(n)                statement.

c. Fractals have a(n)                 property—when subdivided into parts, each is a reduced- size copy of the whole.