Checking for each option
Option A:
Substitute w = 10 and check if we'd get 900 as the answer
Option B:
Substitute w = 10 and check if we'd get 900 as the answer
Option C:
Substitute w = 10 and check if we'd get 900 as the answer
Option D:
Substitue w = 10 and check if we'd get 900 as the answer
Answer: Option B
Option A:
Substitute w = 10 and check if we'd get 900 as the answer
Option B:
Substitute w = 10 and check if we'd get 900 as the answer
Option C:
Substitute w = 10 and check if we'd get 900 as the answer
Option D:
Substitue w = 10 and check if we'd get 900 as the answer
Answer: Option B