Question

how does this ad transmit a cultural value?
by sharing relevant high school graduation statistics
by promoting a new type of educational program
by reminding the public of the need for new schools
by encouraging people to strive for more education

Explanation:

Educational values are cultural values. Encouraging more education promotes a cultural - value related to the importance of learning. Statistics sharing is more about data, promoting a program is business - like, and reminding about new schools is more about infrastructure needs rather than directly transmitting a cultural value.

Answer:

by encouraging people to strive for more education