Lewis structure of ch3ch2nh3+

       H    H    H
        I      I     I  
H -- C -- C -- N -- H
        I      I      I
       H    H    H

The Is stand for dashes, sorry I couldn't draw this better.

The answer is letter c

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts