Read the paragraph. The snow began falling early in the morning. Tiny, weightless crystals. By early afternoon, the ground was covered with several inches of snow. Snow flurries continued throughout the day. When the evening came, the snow was still falling. At least a foot of snow lay on the ground.

Which of the following is a sentence fragment?
Snow flurries continued throughout the day.
The snow began falling early in the morning.
Tiny, weightless crystals.
When the evening came, the snow was still falling.