Logic: We have to draw a Venn diagram and analyse the statements.
The minimum possible Venn diagram for the given condition is given below:
Now, we have to analyse the statements.
Conclusions: I. No solid is a gas. False. As some portion of solid is overlapping with gas.
II. No gas is a powder. True. As Gas is a part of a Solid and solid can't be Powder.
III. No lotion is a powder. True. As Lotion is a part of Solid and solid can't be Powder.
IV. Some powders are lotions. False. As no part of Powder is overlapping with Lotion.
As it can be seen that only conclusion 2 and 3 are right.
Therefore, the direct answer should be "Only conclusions II and III follow".