The united against malaria campaign at the bottom right corner of the web page is an appeal to emotion (Pathos). showing how they contribute to the society.
At the bottom of the display, there are little icons that take us to different pictures and write up. the first one is the audited results causing an appeal to credibility,( Ethos)
Next to it is the icon that shows the brand name "MTN" indicating that they have been in business for 100 years. This is also an appeal to credibility.
There is also an icon for MTN Apps Competition "Thinking outside the box". They keep the public actively involve in competitions that attract rewards this rewards will appeal to the emotions of the public. and also an appeal to logos
The second to the last icon represents the number of subscribers gives an idea of billions of connections. this is an appeal to this is also an appeal to credibility and to emotion.
There is also an icon that represent brand values: innovation, leadership, integrity, can-do and relationship. these brand values explain and summarizes the services and benefits the company offers. They appeal to emotion and credibility.
The people potential section of the webpage shows job opportunities which is a practical evidence of what the company can offer the public apart from their immediate service. This produces an appeal to Reason (logos) and also to emotion.
The shade of yellow determines the meaning. Pure, bright and sunny yellow is the easiest color to see. People who are blind to other colors can usually see yellow. Yellow is full of creative and intellectual energy. the bright yellow color on the logo creates reasoning and emotion.