Which vitamin deficiency causes night

Select the most appropriate ANTONYM of the given word.

  Timid

Autocracy

A) Subdue B) Loose C) Stimulate D) Careless

Out of four alternatives choose the one word which can be substituted for the given words/sentence and indicate the correct answer.

A) Ambivalent                       

B) Anachronistic  

Identical

She has a cheerful disposition.

OBSEQUIOUS

Select the word which means the same as the group of words given.

Branch of physics dealing with the properties of sound

The landscape was breathtaking .