2. What is a characteristic of angiosperms? A. They reproduce using naked seeds and cones
B. They reproduce using diploid spores
C. They reproduce using haploid spores
D. They reproduce using flowers and fruit

Help ASAP please

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.