Solve the problem.At a state fair truck pull, two pickup trucks are attached to the back end of a monster truck as illustrated in the figure. One of the pickups pulls with a force of 1,400 pounds and the other pulls with a force of 3,400 pounds with an angle of 45° between them. With how much force must the monster truck pull in order to remain unmoved? HINT: Find the resultant force of the two trucks. Round your answer to the nearest tenth. 
A. The truck must pull with a force of 2,605.4 lb.
B. The truck must pull with a force of 4,500.2 lb.
C. The truck must pull with a force of 2,197.3 lb.
D. The truck must pull with a force of 4,276.9 lb.
Answer: B
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