Which of the following statements is true about an endergonic reaction?
δg is positive
δg is negative
δs is negative

For an endergonic reaction, the statement ΔG is positive is the true statement. So the first option in the given question is the correct option. Any reaction that requires energy to be absorbed is called an endergonic reaction. For example, photosynthesis is a great example of endergonic reaction. In photosynthesis sunlight is required to be absorbed to complete the reaction. The sunlight acts as the energy required. This type of reaction is never spontaneous, but requires external force to complete the reaction.