$A$ block of steel of size $5 \text{ cm} \times 5 \text{ cm} \times 5 \text{ cm}$ is weighed in water. If the relative density of steel is $7$,its apparent weight is:

• A
  $6 \times 5 \times 5 \times 5 \text{ gf}$
• B
  $4 \times 4 \times 4 \times 7 \text{ gf}$
• C
  $5 \times 5 \times 5 \times 7 \text{ gf}$
• D
  $4 \times 4 \times 4 \times 6 \text{ gf}$