Scenario $17-3.$

Consider two countries, Kinglandia and Rovinastan, that are engaged in an arms race. Each country must decide whether to build new weapons or to disarm existing weapons. Each country prefers to have more arms than the other because a large arsenal gives it more influence in world affairs. But each country also prefers to live in a world safe from the other country's weapons. The following table shows the possible outcomes for each decision combination. The numbers in each cell represent the country's ranking of the outcome $(10=$ best outcome, $1=$ worst outcome$).$

Rovinastan

Build new weapons

Disarm existing weapons

$\backslash$table$[[\backslash$table$[[$Build new$],[$weapons$]],\backslash$table$[[$Kinglandia: $4],[$Rovinastan: $4]],\backslash$table$[[$Kinglandia: $10],[$Rovinastan: $1]]],[$Disarm existing weapons,$\backslash$table$[[$Kinglandia: $1],[$Rovinastan: $10]],\backslash$table$[[$Kinglandia: $8],[$Rovinastan: $8]]]]$

Refer to Scenario $17-3.$ If Rovinastan chooses to disarm its existing weapons, then Kinglandia will

disarm to promote world peace.

build new weapons to increase its influence in world affairs.

build new weapons to promote world peace.

disarm to increase its influence in world affairs.