For two positive integers $a$ and $b$,if $\text{HCF}(a, b) = 7$ and $\text{LCM}(a, b) = 385$,then which of the following is true?

  • A
    $a \times b = 2695$
  • B
    $a \times b = 55$
  • C
    $a + b = 392$
  • D
    $a - b = 378$

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