Venereal diseases (STIs) can spread through:
(a) Using sterile needles
(b) Transfusion of blood from infected person
(c) Infected mother to foetus
(d) Kissing
(e) Inheritance

Choose the correct answer from the options below:

STIs (like Hepatitis-B, HIV) can spread through sexual contact, sharing of infected needles (not sterile), transfusion of infected blood, and from an infected mother to the foetus. They are not generally spread by kissing (unless specific conditions exist) or genetic inheritance (inheritance refers to traits in DNA, whereas mother-to-child is vertical transmission).
Based on the standard NEET 2021 key, (b) and (c) are the primary routes listed.