Correct the following statements :

(a) Surgical methods of contraception prevent gamete formation.

(b) All sexually transmitted diseases are completely curable.

(c) Oral pills are very popular contraceptives among the rural women.

(d) In E.T. techniques, embryos are always transferred into the uterus.

(a) Surgical methods of contraception block gamete transport and thereby prevent conception.

(b) All sexually transmitted diseases are completely curable if detected early and treated properly  except for hepatitis-B, genital herpes and HIV infections.

(c) Oral pills are very popular contraceptives among the educated urban women.

(d) In E.T. techniques embryos may be transferred to the fallopian tubes or uterus depending upon the number of blastomeres.