If a behavior analyst states, "It took four attempts, but Johnny completed the puzzle," she is using which measure?

The purpose of including untaught items or tasks within a Discrete Trial Instruction program is to assess:

An experimental design that starts with a baseline phase, followed by a treatment phase, then another
baseline phase, and ends in the same type of treatment phase is called a (n):

A child with food refusal behaviors accepts one bite out of the ten bites that her caregiver offered. What
measure should be used to record this behavior?

Which measure would probably be the best measure for crying?