Assuming that the bolded word is winner, the correct answer is object complement.
The word winner refers to the word <em>play - </em>and given that the word play is the direct object of this sentence, then the word <em>winner </em>will be its complement - it will complete it, and answer the question What did the critics declare the play to be?
It cannot be a predicate nominative because it is not preceded by a verb. It cannot be a direct object because that is <em>the play. </em>It cannot be a predicate adjective because it is a noun, not an adjective.
Answer:
One reason in which students might not play sports is because they feel that they are just not good enough to play infront of many people. Some just suffer plain anxiety which comes with mean thoughts towards themselves and just they have little faith in that they can accomplish what they want.