A 25 year old married male presents with infertility.He had undergone retroperitoneal lymphnode disection at age of 15 years for embryonal carcinoma of right testis.Semen analysis shows-quantity-0.5 ml,no.sperm,no fructose.Biopsy of testis shows normal spermato genesis.Best treatment here would be:

• A. Artificial insemination of donor
• B. Penile-prosthesis
• C. Microtesticular aspiration and intracyto plasmic injection
• D. None of the above