The movement of the progress bar may be uneven because questions can be worth more or less $($including zero$)$ depending on your answer.

Read the following passage:

The thermometer had been in the back of the bathroom drawer for as long as I could remember. I brushed off the dust and stuck it under my tongue even though I was unsure of its veracity.

What does "veracity" mean as it is used in this reading? Use this dictionary entry to answer the question:

ver$-($prefix$)$ truth

cleanliness

scale

safety

accuracy