Which of the following are not sexually transmitted diseases? 

(A) Gonnorhoea
(B) AIDS
(C) Diarrhoea
(D) Syphilis
(E) Ringworm

Choose the correct answer from the options given below:

(C) and (E) only

The correct answer is Option (3) → (C) and (E) only

(A) Gonorrhea: This is a sexually transmitted disease (STD) caused by the bacterium Neisseria gonorrhoeae.

(B) AIDS: Acquired Immunodeficiency Syndrome (AIDS) is an STD caused by the Human Immunodeficiency Virus (HIV).

(C) Diarrhoea: This is not an STD. It is generally caused by infections, contaminated food or water, or other gastrointestinal issues.

(D) Syphilis: This is a sexually transmitted infection caused by the bacterium Treponema pallidum.

(E) Ringworm: The fungi belonging to the genera Trichophyton, Microsporum, and Epidermophyton cause an infection called ringworm. Dry scaly lesions are a common symptom of this fungal infection.

The conditions that are not sexually transmitted diseases are: (C) Diarrhoea and (E) Ringworm.