Conveyances means vehicles or transports. The context clue to help you here is the appositive phrase that lists vehicles.
Vanquish means to defeat or conquer. The context clue here is that the enemy forces "conquered his army instead". This tells us that the duke's goal was what the enemy actually accomplished.
Herpetologist means person who studies reptiles. The context clue here is "studying the reptiles".
*You did not include what is in the drop down list so these might not be exact matches but they should be very close.
Why would a parent let their child play a dangerous sport if they don’t even know the outcome of what could happen.
Playing dangerous sports at a young age is extremely dangerous for teenagers because their brains haven’t developed fully yet.
A parent would feel terrible if there child got injured from a dangerous sport knowing that they could have prevented it.
A man stands tall threw pain and death will roar like a line with pride
Assuming that in the last option 'whichever melody you create' is underlined, the correct answer is that one, the last sentence. Because this is the only sentence in which 'to' is used as a preposition, in 2 and 3 there are no prepositions, and in 1 'to' is a part of an infinitive phrase.
It means the "Junior Reserve Officer Training Corps", by the US Armed Forces.