Given :-
To Find :-
- The expression that is equivalent to one of the choices given .
Solution :-
As we know that ,
→ (-) × (-) = (+)
→ (-) × (+) = (-)
→ (+) × (-) = (-)
→ (+) × (+) = (+) 
On using these open the brackets ,
→ -1/3 - 1( -4 + 1/6 ) 
→ -1/3 - 1(-4) + -1(+1/6) 
→ -1/3 (-)(-)(1* 4) (+)(-) (1*1/6)
On using now above stated rules ,
→ -1/3 +4 -1/6
Somewhat rearrange ,
→ 4 -1/3 -1/6 
Take (-) as common,
→ 4 - (1/3 +1/6)
Hence Option (d) & (f) are correct .
I hope this helps.