Evaluations for input

Water flows upward in a pipe slanted at 30°, as in Fig. P2.35. The mercury manometer reads h = 12 cm. What is the pressure difference between points (1) and (2) in the pipe? <image 1>

(A) 12400 Pa

(B) 36000 Pa

(C) 26100 Pa

Answer with the option's letter from the given choices directly. No punctuation.