Answer:
c. w = 2/3l
Explanation:
for a., none of the values fit so it can't be a.
for b., the second row fits but none of the others do so it can't be b.
for c., every single row fulfills the equation so the answer is c.
for d., the first row fits but none of the others do so it can't be d.
since there are only four choices it's fine to plug and test.
happy learning n hope this helped!