Assinale a opção que apresenta a distância entre o ponto P equals open parentheses 1 comma negative 2 comma 1 close parentheses e o plano straight pi colon straight x plus 2 straight y minus straight z plus 3 equals 0

a.
d open parentheses P comma straight pi close parentheses equals square root of 6

b.
d open parentheses P comma straight pi close parentheses equals fraction numerator square root of 2 over denominator 2 end fraction

c.
d open parentheses P comma straight pi close parentheses equals 3

d.
d open parentheses P comma straight pi close parentheses equals fraction numerator square root of 3 over denominator 3 end fraction

e.
d open parentheses P comma straight pi close parentheses equals fraction numerator square root of 6 over denominator 6 end fraction