Probability using normal distribution

H.) The length of time it takes a student to find a parking spot on campus follows normal distributionof mean, 3.5 minutes. The probabilitythat a student will find a spot in less than 3 minutes is:

1.) 0.8085

2.) 0.1915

3.) 0.3085

4.) 0.6915

You have not mentioned the standard deviation.
However options 1 and 4 cannot be correct as in normal distribution …

Probability is calculated using normal distribution.