Question

which of the following is a sentence fragment?
barack obama won the presidential election in 2008 and was inaugurated in 2009.
inaugurated in 2009, barack obama had won the presidential election in 2008.
barack obama, who won the presidential election in 2008 and was inaugurated in 2009.
in 2008, barack obama was elected, and he was inaugurated in 2009.

Explanation:

A sentence fragment lacks a complete independent clause (a subject with a full predicate that expresses a complete thought). The third option only has a subject ("Barack Obama") with a dependent relative clause, but no main verb to form a complete statement. The other options are complete sentences with independent clauses that express full thoughts.

Answer:

C. Barack Obama, who won the presidential election in 2008 and was inaugurated in 2009.