The essentials of micronutrients can be established easily since they are required in small quantities.

Concept: Micronutrients are the molecules that the body requires in small amounts. Though these are required in small amounts, they are important for the body's function.

The micronutrients are required in small amounts.  They are required in a small amount to perform their particular role in body functioning.  The micronutrients contain minerals and vitamins.  It is difficult to establish these micronutrients as they are required in trace amounts. Hence the given statement is false. The macronutrients are required in large amounts for the body's function.

Hence, the correct answer is option B.