Explanation
In this series, each term consists of three letters.
The first letter of each term is obtained by incrementing the previous first letter by 5, the second letter of each term is obtained by incrementing the previous second letter by 7, and the third letter of each term is obtained by incrementing the previous third letter by 2.
Using this pattern, we can find the missing term in the series as follows:
• Starting with "ADC", we add 5 to A to get F, add 7 to D to get K, and add 2 to C to get E. So the second term is "FIH".
• Starting with "FIH", we add 5 to F to get K, add 7 to I to get N, and add 2 to H to get M. So the third term is "KNM".
To get the next term in the series, we need to apply the same pattern:
• Starting with "KNM", we add 5 to K to get P, add 7 to N to get U, and add 2 to M to get O. So the missing term is "PSR".
Therefore, the correct answer is option:
C: PSR.
