Final answer:
The statement that indicates comprehension of managing venous insufficiency is the client's intention to wear compression stockings during the day, as they aid in blood circulation and prevent pooling in the lower extremities.
Step-by-step explanation:
The correct statement by the client that indicates an understanding of the teaching about venous insufficiency of the lower extremities is "I'll wear compression stockings during the day." This practice helps improve blood flow and prevent blood from pooling in the lower limbs. Wearing compression stockings during the day can apply the necessary pressure to aid in returning blood back to the heart, thereby reducing swelling and preventing the progression of varicose veins. On the other hand, crossing the legs, avoiding elevating the legs while sitting, and limiting walking can actually worsen venous insufficiency.