What is people participation

People's participation is becoming the central issue of current period. Participation means that people are closely involved in the economic, social and cultural and political processes that affect their lives. ... It generally refers to people's involvement in particular projects or programmes.

Explanation:

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.