The word 'shy' in Spanish is 'reservado' for a boy and 'reservada' for a girl. However, 'reservado' mean reserved, which is a synonym of shy. :)
The correct answer would be D. Me Gusta Nadar. Hope this helps!:)
Mis amigos van al museo a ver las pinturas
muchas personas irán a la plaza a divertirse
mis primos fueron al cine