Answer:
Complexity ⇒ electric cars are affected by complexity. Chargers for electric cars are not easily found in small cities, which makes it difficult for people living on small towns to own an electric car.
Compatibility ⇒ when Apple launched the iPad, most of its consumers already owned an iPhone which made their use much more simple, natural and compatible.
Relative advantage ⇒ hybrid cars are much more fuel efficient than regular gas cars and that is an advantage when consumers are comparing the costs of owning and using a car.
Trialability ⇒ free lotion samples given away in supermarkets are an example of trialability. Potential consumers can use try them and if they like them they will purchase them. Another example is the one month free trials for online services.
Observability ⇒ when Apple launched the first iPhone, the Blackberrry phone was the most popular. But as people were able to observe the advantages of the iPhone, they quickly changed their phones.