Where would you see the abbreviation "ps" a)at the foot of the letter б)on a compass в)on a toilet door

A, это означает post scriptum

My favorite time of the year - summer. maybe it's because in the summer my birthday. maybe it's because in summer is not necessary to wear warm clothes.maybe because in the summer we do not go to school and do not make a lot of homework. in general, the summer - it's a wonderful time of the year and in the summer we can do a lot of interesting things, not just sit at the computer. as for me, i want this summer to swim plenty in the sea, sunbathing on the seaside. this summer i would also like to spend all day with your friends. this summer, i want a special way to celebrate her birthday, which i have it on july 20, because i was 16 years old. finally, this summer i want to take a break from school, teachers and classmates. in the conclusion i would like to write that i hope my dreams will come true. i hope that this summer i had a good rest and next year i will be with renewed vigor create projects and will bring a lot of wins to this school.