Need some help with number 2 so give me diseases please​

Communicable diseases can be spread from one person to another and are caused by bacteria, fungi and viruses.

Examples of such diseases include:

CoronavirusEbolaHIV and AIDSMeasles 's foot

Non-communicable diseases are not spread from one person to another by contact and are the result of various factors such as lifestyle, genetics, physiological and even environmental factors amongst others.  

Examples are:

Stroke Most heart diseases such as Coronary artery diseaseMost cancersParkinson's diseaseAlzheimer's diseaseDiabetesChronic kidney disease

I’m going to guess these are the choices: a) recreational skiing developed in the mid-19th century b) it was originally invented as a way of getting from place to place in snowy regions c) downhill skiing is currently the only common form of the sport d) it mostly evolved from snowshoeing- if that’s the cases then the answer would be c) downhill skiing is currently the only common form of the sport