GWD-26-Q5

The particular
design of muscles and bones in the neck and limbs of the turtle allow

that it can
draw in its exposed parts such that an attacker can find nothing

but hard shell to
bite.

A.     allow that it can draw in its exposed parts
such that

B.     allow it to draw in its exposed parts, and
so

C.     allows for it to draw in its exposed parts and
that

D.     allows that it can draw in its exposed
parts, and so

E.      allows it to draw in its exposed parts, so
that

1.情态动词不能随意改变

2.allow that有这种表达,此时so 表示所以的副词

这道题答案ms是E吧~

i am also confused between d and e. some explains that allow that means admit doing while allow it to do means permit.