A sudden jump between the values of second
and third ionisation energies of an element
would be associated with the electronic
configuration

We can see  that  a sudden large jump between the values of second and third ionization energies of an element would be associated with electronic configuration $1{\mathrm{s}}^2,2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^2$.

$1{\mathrm{s}}^2,2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^2$ will loose two electrons to form $1{\mathrm{s}}^2,2{\mathrm{s}}^{2}2{\mathrm{p}}^6$ which is a stable electronic configuration of noble gas Ne whose Octet is completely filled. When a third electron is to be removed, a large amount of energy is required as this stable electronic configuration is to be broken.

Hence, option(B) is the answer.