In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
Simple, fast-spreading plant without flowers or leaves, which can often cause disease

Options

A. a) bacteria
B. b) amoeba
C. c) virus
D. d) fungus

Answer

D

Explanation

fungus (N.) : any plant without leaves, flowers or green colouring, usually grown on other plants or on decaying matter
bacteria (N.) : the simplest and smallest forms of life
amoeba (N.): a very small living creature that consists of only one cell
virus (N.): a living thing too small to be seen without a microscope that causes infectious diseases in people, animals and plants