Question

Which element is fifth to the right of the one which is eighth from the right in Step 2 of the given Input?

• A. Radar
• B. 14
• C. Union
• D. Rotator

Hint:

For "$k$th from the right" in an $n$-item list, jump to index \(n-k+1\) from the left; then offset as required.

Answer 1

The Correct Option is D

Step 1: Write Step 2 fully with indices (left $\to$ right).
Wow(1), 3(2), 9(3), 9(4), 14(5), 18(6), Orange(7), Radar(8), Rotator(9), Unit(10), 11(11).
Step 2: Find the 8th from the right.
With 11 elements, the position from the left is \(11-8+1=4\). \(\Rightarrow\) 8th from right = \(9\) at index \(4\).
Step 3: Move five places to the right from index 4.
Index \(4+5=9\) \(\Rightarrow\) element at index 9 is \(\boxed{\text{Rotator}}\).
\[ \boxed{\text{Rotator}} \]

Answer 2

Instead of converting the "8th from the right" term to a position counted from the left, let's stay entirely in from-the-right terms.

Step 2 has \(11\) terms. Moving five places to the right of a term makes it five ranks closer to the right end, so its new "from-the-right" rank is \(8-5=3\).

Counting from the right end, Step 2 reads: \[ 11(1),\ \text{Unit}(2),\ \text{Rotator}(3),\ \text{Radar}(4),\ \text{Orange}(5),\ 18(6),\ 14(7),\ 9(8),\ 9(9),\ 3(10),\ \text{Wow}(11). \]

1. Option Radar: Radar is the 4th term from the right, not the 3rd, so it doesn't match.
2. Option 14: \(14\) is the 7th term from the right — far from the 3rd position required.
3. Option Union: No such term exists in this arrangement at all.
4. Option Rotator: Rotator is exactly the 3rd term counting from the right end, matching the computed rank.

Staying in from-the-right terms throughout confirms Rotator as the answer.

Hence, the correct answer is Rotator.