Answer:
the answer is = b) leur
as it is plural...
Explanation:
bonjour,
boit
Bonjour,
1: Je me chausse.
2 Tu caresses le chien.
3: Ma mère se maquille .
4: Ma soeur se coiffe.
Simply put, the colon is used to provide a pause before introducing related information, while the semicolon is just a break in a sentence that is stronger than a comma but not as final as a full stop.