Answer: Reducing her carbon footprint.
Explanation:
Reduction of carbon footprint is the mechanism in which carbon dioxide and other harmful gases are decreased in environment through steps of recycling, reusing, preserving energy, power, water conservation, sustainable usage of things etc.
According to the question, Laura is trying to decrease her carbon footprint through performing activities that can reduce carbon dioxide content from herself and surrounding by living sustainable life, conserving power, energy water etc.
Other options are incorrect because Laura is not increasing er awareness about social reality, spending time in natural environment ,avoiding low integrity people and improving her exercising power.
