I thought it was B but I’m probably incorrect
I believe the correct answer is - <span>This drug helps people lose more weight than diet and exercise alone.
It says here in the text - 48% of the people who took these drugs along with exercise and diet lost weight, whereas only 23% of those who had exercise and diet (but no drug) lost weight. Obviously, this shows that more people who took the drug lost weight than those who didn't.
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Which Buffers are you referring too?
Electron Affinity is not far different from Electronegativity. It’s just that Electronegativity is the impulse of an atom to attract a shared pair of electrons (or electron density) towards itself and is much more often associated with molecules rather than each atom and the values could vary to some degree, although a single value is commonly used for most calculations in inorganic chemistry whilst Electron affinity is a fixed value of an individual atom.
The answer is A.I hope this helps