Why is there a need to sieve the flour before baking a cake?

To make it soft.

Explanation:

To allow the solid particles being settled on top of strainer and let the smaller ones being in refined well before baking cake.

answer: my answer would be a) scheduling workouts with your friend for consistent days and time

explanation: for me personally i would be much more likely to go to the gym with a friend because i wouldn't want to cancel on them or stand them up.