1.

''Large AC rooms are found to contain 700 parts per million (PPM) of carbon dioxide as compared to open areas which have only 320 ppm.''---A survey report

A. if only conclusion I follows
B. if only conclusion II follows
C. if either I or II follows
D. if neither I nor II follows, and
E. if both I and II follow
Answer» E. if both I and II follow


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