A photograph measuring 5 cm by 7 cm is enlarged in the ratio of 7

A photograph measuring 5 cm by 7 cm is enlarged in the ratio of 7
A: 7 cm by 9.8 cm
B: 7.6 cm by 9.8 cm
C: 7 cm by 5 cm
D: 7 cm by 8.8 cm

Step 1 Original dimensions are 5 cm by 7 cm. Step 2 Enlargement ratio is 7