Most vehicles today are more fuel efficient than cars of ten ...

[stephzh]

Most vehicles today are more fuel efficient than cars of ten years ago. Getting a
  new car for that reason is a good idea.
 
  A) Most vehicles today are more fuel efficient than cars of ten years ago, getting a
  new car for that reason is a good idea.
  B) Most vehicles today are more fuel efficient than cars of ten years ago, therefore,
  getting a new car for that reason is a good idea.
  C) Most vehicles today are more fuel efficient than cars of ten years ago, so getting
  a new car for that reason is a good idea.

Question 2

Attaching components, such as printers and digital camera ports, to a computer
  takes patience. Reading the directions is not a bad idea.
 
  A) Attaching components, such as printers and digital camera ports, to a computer
  takes patience; however, reading the directions is not a bad idea.
  B) Attaching components, such as printers and digital camera ports, to a computer
  takes patience yet reading the directions is not a bad idea.
  C) Attaching components, such as printers and digital camera ports, to a computer
  takes patience, reading the directions is not a bad idea.

[macagn]

Answer to Question 1

C

Answer to Question 2

A

[stephzh]

Thanks for the timely response, appreciate it

[raenoj]

Gracias!