It is D .......................
Is after the underlined word? If so, it'd be a preposition. It's followed by a noun.
It should take a boat about 23 days give or take a day and weather conditions to travel that distance
1.) A.) Algernon eavesdrops on Jack while he's conversing with Gwendolyn.
2.) D.) I believe is the correct answer. Algernon made up the invalid Bunbury in order to travel into the country whenever he pleased.
Hope this helps!