Egg freezing is primarily used for fertility preservation for medical or social reasons; younger age at freezing leads to higher success rates.

• A. It guarantees pregnancy in all cases.
• B. Fertility preservation for medical or social reasons; younger age at freezing leads to higher success rates and better outcomes upon use.
• C. It is used to delay menopause.
• D. It is used to cure infertility.

Answer: (D)

Egg freezing is a fertility preservation approach that stores a person’s oocytes for future use, usually for medical reasons (like cancer treatment) or social reasons (delaying childbearing). The important point is that this procedure preserves fertility, not guarantees a pregnancy, not cures infertility, and not delays menopause. Younger age at the time of freezing matters because eggs from younger individuals generally have higher quality and better survival through the freezing and thawing process, leading to higher chances of a live birth when those eggs are later used.

Among the options, the statement that correctly captures this idea is the one that describes fertility preservation for medical or social reasons and notes that younger age at freezing leads to higher success rates and better outcomes upon use. The proposal that it guarantees pregnancy, delays menopause, or cures infertility does not align with how egg freezing works.