If a Female Orchid Bee Has Just Left a Brazil

Multiple Choice

If a female orchid bee has just left a Brazil nut tree with nectar in her stomach, and if she visits another flower on a different Brazil nut tree, what is the sequence in which the following events should occur?
1) double fertilization
2) pollen tube emerges from pollen grain
3) pollen tube enters micropyle
4) pollination

A) 4, 2, 3, 1
B) 4, 2, 1, 3
C) 4, 3, 2, 1
D) 2, 4, 3, 1
E) 2, 4, 1, 3