To solve this problem, we need to identify the modes of transmission for venereal diseases. Let's analyze each option:$\newline \bullet$(a) Using sterile needles:$\newline$ - Sterile needles do not transmit infections, as they are free from pathogens.$\newline$ - Therefore, this option is incorrect.$\newline \bullet$(b) Transfusion of blood from infected person:$\newline$ - Blood transfusion from an infected person can transmit venereal diseases such as HIV and hepatitis.$\newline$ - Therefore, this option is correct.$\newline \bullet$(c) Infected mother to foetus:$\newline$ - Venereal diseases can be transmitted from an infected mother to her foetus during pregnancy or childbirth.$\newline$ - Therefore, this option is correct.$\newline \bullet$(d) Kissing:$\newline$ - Kissing is generally not a common mode of transmission for venereal diseases, although it can transmit other infections.$\newline$ - Therefore, this option is incorrect.$\newline \bullet$(e) Inheritance:$\newline$ - Venereal diseases are not inherited genetically; they are acquired infections.$\newline$ - Therefore, this option is incorrect.$\newline$Based on the analysis, the correct modes of transmission are (b) and (c).$\newline$Therefore, the correct answer is Option 3: (b) and (c) only.