A 25-year-old married male presents with infertility. He had undergone retroperitoneal lymph node dissection 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 spermatogenesis. Best treatment here would be -
Artificial insemination of donor Penile-prosthesis Microtesticular aspiration and intracyto plasmic injection None of the above