Final answer:
The best response to a pregnant client at 32 weeks' gestation who finds sex difficult is to suggest trying different positions that are more comfortable, accounting for safety and comfort during the third trimester.
Step-by-step explanation:
A pregnant client at 32 weeks' gestation experiencing difficulty with sexual activity is expressing a common concern during prenatal visits. Given the significant changes in the body and the increased discomfort that can occur in the third trimester of pregnancy, the best response among the provided options would be.
"Try different positions that are more comfortable for you." This acknowledges the client's concern and offers a practical suggestion without discouraging sexual activity, which, if there are no contraindications, can be safely continued during pregnancy. It is important to have open and honest communication with healthcare professionals to find solutions that best suit the client's individual needs.