Which of the following statements is correct?
- A$BCl_3$ and $AlCl_3$ are both Lewis acids and $BCl_3$ is stronger than $AlCl_3$.
- B$BCl_3$ and $AlCl_3$ are both Lewis acids and $AlCl_3$ is stronger than $BCl_3$.
- C$BCl_3$ and $AlCl_3$ are both equally strong Lewis acids.
- DNeither $BCl_3$ nor $AlCl_3$ are Lewis acids.
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