Can you answer this health questions i will give brainlist

Anwhen planning a water activity, it's best to include a friend or a group of friends rather than going alone, even if it's aneasy activity. tf

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.

Which of the following statements is a blaming message ? a. “i think we made a mistake.” b. “you’ve messed up everything! ” c. “we can’t mess this up.” d. “i apologize for the error.”