1. A country is said to have food security when it can * 1 point
(a) Feed most of its population
(b) Provide a protein-rich diet for everyone
(c) Secure food for everyone during periods
of natural disasters
(d) Provide safe and nutritionally balanced
food for everyone at all times

D. most models represent a real world object in a simpler way

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later