Which of the following topics is best organized with a compare/contrast structure

The following topics are best organized with a compare/contrast structure:

1. Comparing two different movie genres. For example, comparing romantic comedies to action movies, highlighting the similarities and differences in plot, characters, themes, etc.

2. Comparing two different political ideologies. For instance, comparing liberalism and conservatism, discussing their beliefs, policy positions, and approaches to society and government.

3. Comparing two different educational systems. For example, comparing the traditional education system to homeschooling, examining the advantages and disadvantages of each approach.

4. Contrasting different types of renewable energy sources. For instance, comparing solar power to wind power, discussing their effectiveness, cost, environmental impact, and scalability.

5. Comparing two different communication platforms. For example, comparing traditional mail to email, discussing their speed, convenience, reliability, and environmental impact.