The correct answer is B.
Modern terrorism does not always mean fight in combat. Cyber attracts against individuals, security alarms and concerns while traveling, bombs exploding in city centers, all these are examples of modern day terrorism.
Many people, especially in the Middle East, still experience terrorism as combat and fighting on a daily basis. They are directly affected by it and they lives are spent living in constant danger.
Many people in the West view terrorism as the biggest threat in the 21st century as it disturbs the peace and stability of their every day lives.