Answer: A, B and C

Your question says “three” in the title but “Choose 2” at the end. Three options are required, so I’m going with the “three” wording. The options have OCR typos, and I’m reading them as follows:

A. <apex:includeLightning/>: This loads the Lightning Components for Visualforce JavaScript library (lightning.out.js), which has to be on the page first.
C. $Lightning.use: This points to the Aura application that declares your component’s dependencies (an app that extends ltng:outApp) and runs a callback once it’s ready.
B. $Lightning.createComponent: This creates the component and inserts it into a DOM element on the page. It is called inside the $Lightning.use callback.
xml
<apex:page>
<apex:includeLightning/>
<div id="lightningContainer"></div>
<script>
$Lightning.use("c:myApp", function() {
$Lightning.createComponent("c:myComponent",
{ label: "Hello" },
"lightningContainer",
function(cmp) { /* component created */ }
);
});
</script>
</apex:page>

The other options don’t fit:

D. <apex:slds/>: This loads the Lightning Design System styles. It’s useful for styling, but it isn’t needed to create the component.
E. $Lightning.useComponent: This isn’t a real API. You may be thinking of $Lightning.use....

A B and C are correct. But mistyped.