Answer
a) false
b) true
c) false
d) true
e) false
f) true
Work Step by Step
a) None of the animals listed are red.
b) Dogs and cats are mammals; the rest of the listed animals are birds.
c) There are blue and yellow birds.
d) There are also birds.
e) There are 5 blue birds.
f) There are black dogs ,cats and birds.