aw sik mate. nar man my parents dont speak russian, they speak the ukrainian language so yeh i understand bits of the ukrainian language, i'm not fluent in it though.
My friends and i came across that question and we were like, there's no answer there. Only H3O+ has a coordinate covalent but it's not here! Then my teacher came around and said we know more chem than the people who wrote the exam hehe ^^