Una persona realiza 3/5 partes de un viaje en ferrocarril; los 7/8 del resto en coche y los 26 kilómetros restantes en motos. Calcular cuántos kilómetros recorre.

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.  

ok i dont know what b says but d is the only one that sounds some what like an aperitivo

corras is the only one that is informal but doesn't follow the suffix rule. correr is the verb. corre is the formal verb form. corra would be used as the formal is corre ended with an a.

your best bet would be corras, it's the only one that is informal but is still wrong