Talking about a thing or a person (Part 1/2)

French

How do you say 'a mobile phone' in French?

Which one of the following can ONLY mean 'it is' when you are referring to a masculine noun?

Which one of the following can ONLY mean 'it is' when you are referring to a feminine noun?

Which one of the following can mean 'it is' referring to either a masculine or a feminine noun?