Complete the Following Using the Terms Listed

Complete the following using the terms listed.
-One way of measuring the success of an online ad is by calculating the _____,which is a measure of the percentage of website visitors who actually make purchases.

A) e-commerce
B) electronic data interchange (EDI)
C) Electronic storefronts
D) Secure Sockets Layer (SSL)
E) electronic wallet
F) firewall
G) phishing
H) blog
I) Click-through rate
J) conversion rate