Determine the specified vector using the given information. 
a = 3i -8j, b = 2i +6j and c = -8jproj_a(b +c)

• A. (176/73)i - (66/73)j
• B. (176/73)i + (66/73)j
• C. (66/73)i + (176/73)j
• D. (66/73)i - (176/73)j

Answer: (D)