Building select menus based on this array

[duckduckgoose]

I marked the other thread as resolved because I've made some progress towards getting the array I had hoped for and now just need help figuring out how to build the select menus based on the array below.

Basically, I want to create the following two select menus based on the array:

<select name="size">
<option value="X879">small / medium</option>
<option value="7ABC">small / large </option>
</select>

<select name="quantity">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>

Array
(
    [size] => Array
        (
			[X879] => Array
			(
				[0] => Array
				(
		            [item_id] => 32
		            [value] => small
		            [id] => 2
		            [aid] => 10
				)

			[1] => Array
			(
	            [item_id] => 32
	            [value] => medium
	            [id] => 2
	            [aid] => 14
			)
		)

		[7ABC] => Array
		(
			[0] => Array
			(
	            [item_id] => 32
	            [value] => small
	            [id] => 2
	            [aid] => 10
			)

			[1] => Array
			(
	            [item_id] => 32
	            [value] => large
	            [id] => 2
	            [aid] => 130 
			)
		)
    )

[quantity] => Array
    (
        [options] => Array
		(
			[1] => Array
			(
				num => 1
			)

			[2] => Array
			(
				num => 2
			)

			[3] => Array
			(
				num => 3
			)
		)
    )
)

[bpat1434]

What have you tried? Have you looked into foreach() and tried anything out?