A teacher has 16 students, then she gets 7 more students. Now how many students does she have? Choose the correct choice from the following.
A) A)9
B) B)15
C) C)15
D) D)23
E) E)25
16+7= 
<gadget id="calculator">16+7</gadget>
<output>23</output>
23. Answer is 23
<result>D</result>
A teacher has 16 students, then she gets 7 more students. Now how many students does she have?