Which answer is the sentence fragment?

a.
four families went strawberry picking on wednesday afternoon.

b.
some of the young children misunderstood and were looking for a "berry fairy."

c.
they rode the "berry ferry" truck out to the picking fields.

d.
big red strawberries in the fields on a hot summer day.

when you awnser pls give me a example pls and i have more questions stay if you will : p

1.at the trials, she won both the 50 and 100 meter freestyle events. 2.her last olympic appearance was at the 2000 sydney games. 3.now her sights are set on olympic history at the 2008 beijing games. 4.dara torres is an amazing swimmer who qualified at the olympic trials to become the oldest olympic female swimmer. 5.with that excellent performance, she is eligible to contend for a medal at the olympics. what is the most logical order for these sentences?