Answer :
Answer:
(A) Of which type there are 200,000 worldwide, can interfere with pacemakers and that.
Explanation:
The correct answer to this question is option A as it best assists to reflect the intended meaning of the passage. The other options are either grammatically incorrect or implying an inappropriate claim. Option B inappropriately using the conjunction 'that' while option C wrongly employs pronoun 'they'. While option D implies an obscure meaning and option E employs 'and' improperly that disturbs the coordination of the sentence. Thus, option A seems the best fit for the passage that offers the most appropriate meaning to it.