Regarding the Laws of UX textbook/web resource, the Peak-End Rule suggests that people judge an experience largely based on how they felt at its __________ and at its __________, rather than the total sum or average of every moment of the experience. Designers should pay close attention to these key moments of an experience, to ensure users recollect the experience as a whole positively.

!. peak, end

2. beginning, end

3. beginning, peak

4. sum, average