If a line is parallel to the vector 4i + 1j+ 4k and passes through the point P = (3,7,9), then the parametric equation of the line is : O a. X=3+ 4\, Y= 7+ 1^, Z= 9+4A O b. X=-3+ 4\, Y= -7+ 1\, Z= -9+4A O c. X=3-41, Y= 7- 1A, Z= 9-4A O d. X=-3-4^, Y=- 7- 12, Z= -9-4A

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Q: O a. X=4+ 7^, Y= 7+ 1\, Z= 10+6A

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