Letter and Symbol Series - Verbal and Reasoning

Directions to SolveIn these series, you will be looking at both the letter pattern and the number pattern. Fill the blank in the middle of the series or end of the series.
Q1:

QAR, RAS, SAT, TAU, _____

A UAV

B UAT

C TAS

D TAT

ANS:A - UAV

Explanation: In this series, the third letter is repeated as the first letter of the next segment. The middle letter, A, remains static. The third letters are in alphabetical order, beginning with R.