50_tuning_forks_are_arranged_in_increasing_order_of_their_frequencies_such_that_each_gives_4_beats/sec_with_its_previous_tuning_fork._If_the_frequency_of_the_last_fork_is_an_octave_of_the_first,_then_the_frequency_of_the_first_tuning_fork_is$

• A. 200Hz
• B. 204Hz
• C. 196Hz
• D. 0