Question

Although neutron stars are only the size of an average city, they are so dense that they typically contain at least 40 percent more mass than the earth's sun.

• A. they are so dense that they
• B. they are of such density, they
• C. so dense are they as
• D. such is their denseness, they
• E. there is so much density that they

Answer 1

The correct option is A they are so dense that they

A. they are so dense that they- correct
B. they are of such density, they- that is required to restrict subject
C. so dense are they as ---passive usage wrong
D. such is their denseness, they -wrong usage of such,
E. there is so much density that they- there is referring to city which incorrectly alters the meaning