請依下文回答第 26 題至第 30 題
          Student motivation has often been cited as one of the most important factors for success in second language (L2) education. According to many scholars, motivation is both a condition for, and a result of, effective instruction.Studies have indicated that lack of motivation for oral communication may be __26__ by providing the learners with a sense of competition. Competition not only means "winner takes all" but also allows students who __27__ in certain areas, such as occurrences of participation, to sense the difference between themselves and others, and then to compete with their peers to achieve "equal" status. Such a self-awareness is often the key to learners' motivation to participate in a class conversation. Students typically do not feel the need to respond to another student's words.However, in a competitive language conversation or discussion event, students are constantly in an __28__ state and are therefore more sensitive to the permissible conversation turns/junctures, which __29__ prepares them to be better able to participate in a conversation. Indeed, research has found out that learners are more motivated to participate in a classroom activity when the activity is competitive in nature; more importantly, a competitive activity was found to have the potential to __30__ the achievement gap for disadvantaged students and therefore facilitate the motivation of students at various L2 achievement status.
【題組】26
(A) overcome
(B) enhanced
(C) highlighted
(D) connected