Algebra II: the mean of a set of credit scores is μ = 690 and σ = 14. which statement must be true? A.) z₆₉₀ is within 1 standard deviation of the mean.
B.) z₆₉₀ is between 1 and 2 standard deviations of the mean.
C.) z₆₉₀ is between 2 and 3 standard deviations of the mean.
D.) z₆₉₀ is more than 3 standard deviations of the mean.

for anyone who wants to answer this, please PROVIDE AN EXPLANATION instead of just writing the answer. i'm not great with algebra II and i'd like to understand the answer rather than just having the answer alone. thank you!! <3