This electronic configuration corresponds to fluorine (atomic number 9). Across the period size decreases with increase in nuclear charge. Hence it has higher first ionisation energy but less than next noble gas.
This electronic configuration correspond to silicon ( period).
This corresponds to first element of period i.e. is bigger than Si . So it has lower ionisation energy then Si .
This electronic configuration corresponds to the inert gas i.e. Ne, which will have the highest ionisation energy.
Hence, the correct increasing order of first ionisation energies is .