What kind of card? there are many ways to write a card. what specific card are you looking to write about?
Answer: I think it is C?
Explanation: Based on the info, it talks about what the Renaissance caused and has the plague done.
B is correct "Dozens" is spelled correctly. As for the other sentences their is incorrect spelling. :)
An example of such a sentence could be: I was BORED during our math class.
A participle is usually used as an adjective within a sentence. Participles are made from verbs - those are those forms used to make tenses such as present perfect, past perfect, etc.
The word which is modified by the participle is the subject of the sentence - the pronoun I.