Regarding attitudes toward birth control, using birth control on a regular basis to avoid an undesired pregnancy demonstrates the component of attitude.

Behavioural

Explanation:

There are three components of behaviour that makes us act and think in a way that allows us to run our lives the way we feel comfortable and these are

In terms of Behavior, this component is the one that drives the way a person will behave towards a certain thing. In this case, an undesired pregnancy. This will be for the benefit of the person in long or short term and will provoke them in a way to take precautionary measures.

d.

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a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.