Correct answer:
Dudo que
This is the more logical answer. This sentence is given in the subjunctive mood. We use the subjunctive to express desires, doubts, the unknown, the abstract, and emotions. Subjunctive sentences often have parts linked by a relative pronoun (que, quien, como). So here we use the relative pronoun que. On the other hand, tenga is the conjugation of the verb tener in the subjunctive mood. Since we don't know the context of the sentence, this sentence can stand either for the first person singular or the third person singular or the formal you (usted). Finally:
Dudo que tenga los libros de biología.
