A market research firm presents a pie chart showing the distribution of customer age groups for a new mobile app: 18-24 (35%), 25-34 (30%), 35-44 (20%), 45-54 (10%), 55+ (5%). If the total number of survey respondents was 2,000, how many respondents were 34 years old or younger?
✓ Correct Answer: Option D
Respondents 34 or younger include the 18-24 (35%) and 25-34 (30%) age groups. This totals 65% (35% + 30%). 65% of 2,000 respondents is 0.65 * 2,000 = 1,300.