13. In “A USC-led study finds that seniors’ attention shortfall is associated with the locus coeruleus, a tiny region of the brainstem that connect...

13. In “A USC-led study finds that seniors’ attention shortfall is associated with the locus coeruleus, a tiny region of the brainstem that connects to many other parts of the brain”, the term “tiny” can be replaced, without change the meaning, by
a) pocket
b) vast
c) huge
d) large
e) significant