Flowers

A flower shop sells the following types of flowers:

All the flowers are available in white, yellow and blue.

Kittu the Beaver wants a bunch of six flowers. She tells the florist (flower seller):

• There must be two of each of the colours yellow, white and blue.
• Flowers of the same type must not have the same colour,
• Every type of flower should only appear, at most, twice.

Question:

Which of the following bunches will Kittu be happy with?