A cow infected with BSE has difficulty holding up its head. Its muscles twitch uncontrollably. It stumbles and falls. Eventually, it loses the ability to walk. Soon after, it dies.
People who eat meat from a cow infected with BSE can have similar symptoms. Their brain tissue gets spongy, resulting in dementia. That's a nerve disorder that causes loss of perception, memory, and judgment. After a while, they become paralyzed–and then die.
—When Birds Get Flu and Cows Go Mad! How Safe Are We?, John DiConsiglio
What is the main problem stated in this excerpt?
Cows can’t hold their heads up and fall down.
Brain tissue gets spongy.
BSE causes death in humans and cows.
Cows die from the disease.

Media project total score: of 100 points during the next several lessons you will create a media project about a place that is important to you, such as the place where you live. your teacher will score your assignment using the media project grading rubric. look at the rubric yourself so that you know how your assignment will be scored. you may create your project using a word processing presentation program or a slide program such as powerpoint®. include a title slide, two or three content slides, and a sources slide that contains the urls of your online sources. save the document to your computer with your name at the end of the filename (e.g., ng_ela 9-10_w_11_ga alice_jones). submit that document to your teacher for grading refer to the media project assignment document and follow the steps to complete the assignment. when you have finished, submit the assignment document to your teacher for grading.