Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements.
Statements:
All cars are old.
Some old are new.
Some new are red.
Conclusions:
(I) All old are cars.
(II) Some new are old.​

​Statements:
All cars are old.
Some old are new.
Some new are red.

​Conclusions:
(I) All old are cars. (Not follow, becase it reverse the statement All cars are old.)
(II) Some new are old. (Follow, as Some old are new.)

So, Only conclusion (II) follows.

Thus, correct option is (d).