Pls help me answer this

Tip: Non-defining clauses usually require commas and start with "who" or "which"
c. Nelson Mandela , who was the first black president of South Africa , won the Nobel Peace Prize in 1993
d. Present participle is adding '-ing" to a word : like playing, helping, finding
Here is how to combine the sentences using a present participle.
Hoping to find a place before dark, they continue their journey
e. Felix was born in Austria on the 20th, April 1969 and became the highest and fastest skydiver ever