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'.

Question: For wound care and depending on their evolution, there is a wide variety of dressings on the market. From the following statements, point out the correct one:
Options: <1> The gauzes always keep the wound in humid conditions. <2> The hydrogel dressing is used to maintain a dry wound. <3> Transparent films are used for infected wounds. <4> Hydrocolloid dressings are used in moist environment cures. <5> The foam dressing is used to maintain a dry wound environment.
4