Read the following excerpt from a student's essay:

The speaker gives an example of how he used to feel and contrasts that with how he feels today. Technology and support were important. They changed his perspective. He uses a simile "like a bird soaring through the sky" to show how he feels today.

Which revision effectively incorporates transitions to improve the flow of ideas?

A: Technology and support were important, changing his perspective. He uses a simile "like a bird soaring through the sky" despite how he feels today.
B: Technology and support were important in changing his perspective. To show the contrast of how the speaker feels, he uses a simile "like a bird soaring through the sky" to show how he feels today.
C: Technology and support were very important. However, they changed his perspective. He uses a simile "like a bird soaring through the sky" because of how he feels today.
D: Technology and support were important because they changed his perspective and because he uses a simile "like a bird soaring through the sky" to show how he feels today.