Calculate the dot product between A = (6.6 i - 3.4 j - 6.4 k ) and B = (8.6 i + 2.6 j - 5.8 k).

• A. 85
• B. 15 i - 0.80 j - 12 k
• C. 11
• D. 57 i - 8.8 j + 37 k