Answer:
The answer to the question is
The test is 90 % sensitive
Explanation:
The sensitivity of a screening test is defined as the capability of a screening test to accurately diagnose an individual as having a disease (true positive rate while test specificity is the capability of a test to correctly indicate the individuals not having a disease also known as the true negative rate. It is given by

Where TP = True Positive and
FN = False Negative
Here the test is able to diagnose 90 out of 100 correctly that is the test is 90% sensitive