Which paragraph (A-C) tells us about ...

1. an invention that was redesigned to be sold abroad.

C

2. an invention that had an effect on wearable technology today.

B

3. an invention that failed twice before it was removed from the market.

A (Although not explicitly stated as 'twice', the recall and replacement issues imply multiple failures)

4. the fact that the invention was energy efficient, but unattractive.

C

5. the fact that other available products could do more than this gadget.

B

6. people who had their travel plans affected by this invention.

A