Is this a surprising discovery?

Is this a surprising discovery? A solar system has several planets similar in composition to our jovian planets but similar in mass to our terrestrial planets.

a)Yes, this is surprising. Small planets cannot form in the Jovian region of a solar system.

b)No, this is not surprising. Our Jovian planets started out as small worlds with this composition and only grew larger through further accretion.

c)Yes, this is surprising. We expect that high gravity (hence high mass) is needed to capture the hydrogen that forms much of the Jovian planet.

d)No, this is not surprising. Terrestrial planets have almost the same compositions a Jovian planets.