Three Statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statement
I: Some phones are laptops.
II: Some laptops are tablets.
III: Some tablets are desktops.
Conclusion
I: Some phones are desktops.
II: All tablets are phones.

Correct option is A

According to the statements the diagram will be:

Conclusion:
I: Some phones are desktops. (False, as per the diagram)
II: All tablets are phones. (False, as per the diagram)
From above Conclusion: Neither conclusion I nor II follows
Thus, correct option is (a).