Detailed Instructions: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Q: Question: If an animal organism has deficiencies in the path of pentose phosphate:
Options: <1> There would be an excess of activity of the enzyme glutathione reductase. <2> The pentose phosphate would be integrated into the glycolytic pathway. <3> NADH would be used to replace NADPH. <4> It would stimulate the synthesis of fatty acids in adipose tissue. <5> The concentration of NADPH would decrease.
A:
5