Least common denominator of 7/9 and 11/12

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

Yo need asap pls ! markin da brainiest too !