Select the word missing to complete the sentence: j’ai un ami. nouvelles nouveau nouvel nouvelle

Hi !!

select the word missing to complete the sentence :

j'ai un nouvel ami.

nouvelles = feminine plural
nouveau = masculine but has to be followed by a word beginning with a                          consonant (see the rule below)
nouvelle = feminine singular

un ami is masculine.
The rule with nouveau (or vieux) singular =  you have to change it in "nouvel" (vieil) because a vowels is following. Same = un vieil homme (silent H) and not un vieux homme, but "un vieux tapis" (an old carpet).
But in plural, you'd say = j'ai de nouveaux amis, ce sont de vieux hommes
feminine would be "j'ai une nouvelle amie"
feminine plural = j'ai de nouvelles amies.

Hope my explanations aren't too confusing and helped !!!