9514 1404 393
Answer:
c
Step-by-step explanation:
The pattern has a 4-letter repeat. We can ignore some number of complete repetitions of the pattern and just look at the letter number in the next instance of the pattern.
147 ÷ 4 = 36 r 3
The 147th letter will be the 3rd letter of the pattern after it has repeated 36 times. The third letter of {a, b, c, d} is c.
The 147th letter of the pattern is "c".
