This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Contraception, Subject name: Gynaecology & Obstetrics
All the following are contraindications for Cu containing IUCD's except 
Select and explain. 
A. Wilson's disease, B. Pregnancy, C. Undiagnosed genital bleeding, D. Ischemic hea disease
D: Ischemic hea disease
Answer: D: Ischemic hea disease 
Explanation: Medical eligibility criteria for initiation and continuation of intrauterine devicesWHO category 1No restriction of useSmokingObesityBreastfeedingIschemic hea diseaseSTrokeHypeensionPost Aboion first trimesterMigraine with or without auraDiabetesThyroid disordersLiver/gallbladder diseaseWHO category 2Advantages outweigh risksNulliparousPost Aboion second trimesterComplicated valvular hea diseaseSevere dysmenorrheaEndometriosisSTDs including HIVVaginitisThalassemiaSickle cell diseaseIron deficiency anemiaWHO category 3Risks outweigh the advantagesPostpaum 48 hours to 4 weeksBenign trophoblastic diseaseOvarian cancerWHO category 4Absolute contraindicationsImmediate post-septic aboionUnexplained vaginal bleedingDistoed uterusCurrent PIDPelvic tuberculosisReference: Novak's gynaecology; 14th edition; Chapter 10; Family planning