I-Ready Identifying Replaced Words and Ideas in Informational Texts - Quiz --- Level F
What does "this discovery" refer to? Choose the words that complete the sentence.
At the same time, it may increase the activity of disease-
fighting cells in the immune system. These effects are getting
doctors' attention because they reveal that laughter may hold
healing properties. In fact, this discovery is having a
phenomenal influence on henth care.
In fact, learning that
is having a phenomenal
influence on health care.
MLD laughter may have healing properties
everyone has disease-fighting cells
the immune system is often active
doctors rarely reveal new discoveries
KO

the anwser is actually "laughter may have healing properties"

Explanation:

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.