Answer: In reduction process, the substance will gain electrons.
Step-by-step explanation:
Oxidation-reduction process or redox reaction are the reactions where oxidation and reduction processes happens simultaneously.
Oxidation reactions are defined as the reactions in which a substance looses its electrons. The oxidation state of the substance is increases.

Reduction reactions are defined as the reactions in which a substance gains electrons. The oxidation state of the substance gets decreased.

Hence, electrons are gained in the reduction process.