Which pronoun correctly completes the following sentence?

the student picked up own backpack and ran to math class.

she or he
their
his or her
its

The correct answer is C) his or her

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Explanation:

the group received an extra pound of butter for christmas.

the annex was delighted to hear that we'll all be receiving an extra quarter pound of butter for christmas.

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia