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Consider the circles x^2+(y-1)^2=9,(x-1)...

Consider the circles `x^2+(y-1)^2=9,(x-1)^2+y^2=25.` They are such that
a.these circles touch each other
b.one of these circles lies entirely inside the other
c.each of these circles lies outside the other
d.they intersect at two points.

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