What is the meaning of the idiom "at the end of my rope"? a. totally twisted around b. feel like it's time to let go c. completely out of patience d. feel like bad things are over

Question 15 of 25 2 points read the following excerpt from a speech: it has been suggested that all automobiles be converted to electric power by the year 2020. _ there simply isn't the infrastructure in place to accommodate such a change. which word or phrase best connects the ideas in these sentences? o a. nowadays o b. therefore o c. in contrast o d. unfortunately