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

• A

  $6\times 5\times 5\times 5\mathrm{gf}$

• B

  $\text{4×4×4×7gf}$

• C

  $5\times 5\times 5\times 7\mathrm{gf}$

• D

  $4\times 4\times 4\times 6\mathrm{gf}$