Here are your answers.
C, D, A, A/C , C, C, D, D, D
"Are all diseases caused by pathogens?"
Answer:
A few harmful microbes, for example less than 1% of bacteria, can invade our body (the host) and make us ill. Microbes cause infectious diseases such as flu and measles. ... Different diseases are caused by different types of micro-organisms. Microbes that cause disease are called pathogens.
To prevent possible injuries and to be safe.