Multiple students possess books, so the plural possessive 'students'' is correct. 'Book's' would incorrectly make it possessive singular.

Loquacious means very talkative or fond of talking. Talkative is the direct synonym.

Benign means harmless, gentle, or kind. In medical terms, it refers to non-cancerous growths.

Parallel structure requires consistent grammatical forms. Option B uses gerunds (reading, writing, painting) consistently throughout the series.

Obfuscate means to make obscure or unclear intentionally. In this context, the politician is deliberately confusing the issue.

B=2, O=6, K=5. C=3, so COOK = 3665. Wait, recalculating: If B=2, O=6, O=6, K=5 gives 2665. For COOK: C is next letter after B, so C=3. Thus COOK = 3665. Option A is correct.

The series is multiples of 8: 8×1=8, 8×2=16, 8×3=24, 8×4=32, 8×5=40, 8×6=48

Cricket, Badminton, and Hockey are team sports played on ground. Swimming is an individual sport and aquatic activity.

This is a coding/decoding problem where each letter is assigned a unique digit based on its position in the alphabet.

Step 1: Extract the code mapping from DELHI = 45789

Assign positions based on alphabetical order:

Find the position of each letter in the alphabet:

- \(D\) is the 4th letter → code digit is 4

- \(E\) is the 5th letter → code digit is 5

- \(L\) is the 12th letter → code digit is 7 (given from DELHI pattern)

- \(H\) is the 8th letter → code digit is 8

- \(I\) is the 9th letter → code digit is 9

Pattern identified: Each letter's code equals its position in the alphabet.

Step 3: Find code for FIELD

Apply the same rule to each letter in FIELD:

- \(F\) is the 6th letter → 6

- \(I\) is the 9th letter → 9

- \(E\) is the 5th letter → 5

- \(L\) is the 12th letter → 7

- \(D\) is the 4th letter → 4

Step 4: Combine the digits

Answer: 69574 (Option C)

This is a series of prime numbers. The next prime after 13 is 17.