The correct answer is: Only assumption II is implicit.
The statement says that vitamin E tablets improve circulation and keep your complexion in a glowing condition. This does not mean that people like a glowing complexion. It is possible that people do not care about their complexion, or that they prefer a different complexion. However, the statement does imply that complexion becomes dull in the absence of circulation. This is because the statement says that vitamin E tablets improve circulation and keep your complexion in a glowing condition. If circulation is important for a glowing complexion, then it follows that complexion becomes dull in the absence of circulation.
Assumption I is not implicit in the statement. The statement does not say that people like a glowing complexion. It is possible that people do not care about their complexion, or that they prefer a different complexion.
Assumption II is implicit in the statement. The statement says that vitamin E tablets improve circulation and keep your complexion in a glowing condition. If circulation is important for a glowing complexion, then it follows that complexion becomes dull in the absence of circulation.