The correct sentence is A.
Explanation:
Girls have the right same right to education as boys. Educated girls can make informed choices - and from a far better range of options. Educating girls saves lives and builds stronger families, communities and economies.
An educated female population increases a country's productivity and fuels economic growth. Some countries lose more than $1 billion a year by failing to educate girls to the same level as boys.
Despite this, girls and young women in many parts of the world miss out on school every day. Around 61 million girls are of school, according to UNICEF in 2016 - 32 million girls of primary school age and 29 million of lower secondary school age.
I’d say 13/14 because that’s when ur in secondary school and you probably will start becoming more independent anyway. However it all depend on where you live and how you act. And you parents or carer opinions on the matter.