If a flower has long pedicels or filaments, flowers before leaves grow and has lots of pollen, what can you infer about its most likely pollination method?

The plant is likely to be pollinated by insects.

The long pedicle will hold the flower of the plant up and allow insects to sight it easily. Moreover, the plant's emphasis on growing flowers, which attract insects due to their bright colors and nectar, rather than leaves, also indicates that the plant focuses on insect pollination.