Answer:
Student drivers are required to keep a log of their supervised driving hours. <em>However</em>, not all students are diligent in their record-keeping.
Explanation:
<em>However </em>is used to present us another statement that in some way contradicts something that was said in the previous one, partially or in the whole. In the given sentences in the first, it is claimed that students must keep a log of their supervised driving hours, yet in the second one there is a statement that not all students follow that rule. So, we have a contradiction between these two statements and using this transition we connect them accurately.
Answer- A vanitas is a symbolic work of art showing the transience of life, the futility of pleasure, and the certainty of death, often contrasting symbols of wealth and symbols of ephemerality and death.
Hope this helps:)
That is a declaritive sentence.