Its a plural possesive because of the -es and the apostrophe
Answer:
A Includes graceful moves and high leaps.
Maybe you have to check yourself and see where the need of improvement is needed.
Answer: informal and casual.
Explanation:
Our online behaviour is part of our daily life. There are plenty of uses for the internet nowadays. Internet users have an online identity. According to the usage they give to the internet and especially the social networks they might have a formal or informal and casual identity. Someone who uses the internet for social reason only usually have an informal and casual identity because it helps to interact with other people.
B. Grammer is spelled incorrectly , it should be grammar.