Observation

Majority of the candidates who attempted this question performed poorly due to spelling errors.
Some spelt, beriberi as berybery etc

The expected answers are:

            Nutritional deficiency diseases in humans

• marasmus
• kwashiorkor
• scurvy
• beriberi
• rickets/osteomalacia
• goitre
• night blindness/keratomalacia
• pellagra     
• any correctly named disease                                                                    

Note: spellings must be correct to score