ADA 2007 RC Q7 & 13

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capnamerica

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In reviewing the answers to questions 7 & 13 of the 2007 ADA test, I was wondering if someone could explain why the correct answer for question 7 and 13 are E and E, respectively.

I chose B and C for Q7 & 13, respectively.

I have an idea about why C might be wrong for Q13 - earlier in the passage, it's mentioned that photons aren't particles - but, I still don't understand why the answer is E - I thought ALARA was developed due to the risks from diagnostic X-rays..

For Q7, I have no idea. B appears to be verbatim from the passage, and the exact opposite of E appears in the passage if my eyes aren't deceiving me.

Could one or both of these be mistakes?
 
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