Read the given passage and answer the questions that follow :-
In a given population one can find out the frequency of occurrence of alleles of a gene of a locus. This frequency is supposed to remain fixed and even remain the same through generations. Hardy Weinberg principle stated it using algebraic equations. This principle says that allele frequencies in a population are stable and is constant from generation to generation the gene pool remains a constant. This is called genetic equilibrium.

Which type of natural selection is shown in the graph?

Disruptive selection .

The correct answer is Option (1) - Disruptive selection .

Disruptive selection: It is just the opposite of stabilizing selection i.e. the extremes have more adaptable phenotypes than the average ones. Consequently, the original population is disrupted into two or more separate groups that later evolve into new species. If disruptive selection results in many  new species then it is termed as adaptive radiation. This kind of selection is rare.