Choose three tenses of verbs. past imperfect intransitive future perfect present perfect present predicate

After realizing a trial with green and red circles, where the participants had to find a correct target in order to obtain a reward, Zachary Rooper and his team announced that the attention of adolescents is related to rewarding information.  

Once the  teenage brain has linked a behavior to that reward, it continues to seek the reward again and again.   That’s why teens are likely to opt for the reward of social media when they should be studying. Or why  they respond to texts while driving.

Explanation:

This evidence cannot be sufficient to support his statement that teenage brains are constantly seeking to reward. Teenage distractions and lack of attention could be related to their studying habits and their interests, not with the rewards they are expecting from social media websites. Although the rewarding system can motivate middle school and high school students, it should not be related to another habit in their life. It's true that many parents reward their children for achieving good results at school, but their concentration is also related to their personality, study habits, etc.

Therefore, Rooper's statement could be partially applied to the teenage population, but it shouldn't determine their behavior, as some of these behaviors are related to their age and the essential period of their development.