Machine that improves the efficiency of a cleaner cum grader by removing smaller and larger size impurities from the grain?

Select the most appropriate ANTONYM of the bold word.

FALLACY

Choose the word opposite in meaning to the given word.

Fidelity

14. Malevolent

Choose the correct ANTONYM for the given word.

IGNORANT 

Select the most appropriate option to substitute the bold segment in the given sentence.

Jovial - Seema is one of the most 'jovial' persons I have ever met.

Give the baby a good diet

A) Tantamount B) Natural C) Serious D) Equal

Select the most appropriate antonym of the given word.

Authentic