Read the following sentence and identify which part(s)/portion(s) make up the subject of the sentence. El profesor administra el examen a los estudiantes.

the right answer is c. tiempos

el partido de fútbol tiene dos tiempos

in english, this translates:

a football match has two halves

these halves cosists of 45 minutes each.   each half runs continuously. on the other hand, there is usually a 15-minute half-time break between halves.  

no a reflexive verb usually end in e

the answer to your question is,

puerto rico

-mabel < 3