The correct option is A Hormonal treatment to increase ovulation
Infertility is a condition which prevents couples from having a baby even after years of unprotected sexual intercourse. This could result from defects on the part of the male partner or female partner or both. In females, anovulation is a condition in which the female is unable to produce viable oocyte for fertilisation. This is a primary reason for infertility. In such a situation, hormonal treatment could be administered to the female to induce ovulation or even superovulation (several mature oocytes are produced instead of one). This could help overcome the infertile situation and help the couple bear a child.
Surgically blocking the fallopian tube refers to tubectomy. It is a surgical method of sterilisation in case of females. It hinders the passage of oocyte from ovary to the fallopian tube, thus preventing conception.
IgG, IgM, and IgA are antisperm antibodies. As the name suggests, antisperm antibodies are the ones that target the sperms in the semen as foreign entities or antigens and damage or destroy them. If these are introduced in the female reproductive system in large numbers, they would kill sperms.
Growth of endometrial tissues in other parts of the reproductive system is known as endometriosis. This can lead to implantation of embryo in those parts, which might lead to ectopic pregnancy. Ectopic pregnancy can be very harmful for the female.