Choice A rationale:

Smoking cessation is an important preventive strategy for gynecologic cancers.

Smoking is a risk factor for cervical and ovarian cancers.

Cessation of smoking reduces the risk of developing these cancers.

Nicotine and other chemicals in tobacco can damage DNA and lead to the development of cancerous cells.

Choice D rationale:

Practicing safe sex is crucial in preventing certain gynecologic cancers, especially cervical cancer.

Human papillomavirus (HPV) is a sexually transmitted infection that can lead to cervical cancer.

Using condoms and practicing safe sex can reduce the risk of HPV infection, thus reducing the risk of cervical cancer.

Choice E rationale:

Maintaining a healthy weight is another important preventive strategy for gynecologic cancers, particularly endometrial cancer.

Obesity is a risk factor for endometrial cancer because excess body fat can increase estrogen levels, which can promote the development of cancerous cells in the endometrium.

Maintaining a healthy weight through diet and exercise can help reduce the risk of endometrial cancer.

Now, let's explain why Choices B and C are not correct:

Choice B rationale:

Eating a high-fat diet is not a recommended prevention strategy for gynecologic cancers.

In fact, a high-fat diet is associated with an increased risk of certain cancers, including breast and ovarian cancer.

Encouraging a high-fat diet would be counterproductive to cancer prevention efforts.

Choice C rationale:

Avoiding regular screenings is not a recommended strategy for preventing gynecologic cancers.

Regular screenings, such as Pap smears and mammograms, are essential for early detection and timely treatment of gynecologic cancers.

Avoiding these screenings can increase the risk of cancer going undetected until it reaches an advanced stage.