If a Researcher Finds That There Is a Correlation Between

Multiple Choice

If a researcher finds that there is a correlation between secondhand smoke and children's asthma, he knows for SURE that _____.

A) secondhand smoke causes children's asthma
B) secondhand smoke does not cause children's asthma
C) children exposed to smoke in utero often get asthma
D) asthma and secondhand smoke have some connection