1.

1). PRQ2). PQR3). RQP4). QPR

Answer»

A sentence can't end with and => R can't be third => RULE out 2) and 4). Up to = dependent on. CLEARLY, consumers fits in here as anything is usually dependent on HUMANS in general. P is FIRST. Option 1) PRQ is the correct answer.

It is up to consumers now to appreciate the threat of antibiotic resistance and exercise this power with care.



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