“(d)

a person uses or attempts to use him for any purpose within sub-paragraph (i), (ii) or (iii) of paragraph (c), having chosen him for that purpose on the grounds that—

(i)

he is mentally or physically ill or disabled, he is young or he has a family relationship with a person, and

(ii)

a person without the illness, disability, youth or family relationship would be likely to refuse to be used for that purpose.”