Step 1: Understanding the Concept:
Knitted fabrics are classified into weft knits (loops formed horizontally across the width of the fabric) and warp knits (loops formed vertically along the length of the fabric).
Step 2: Detailed Explanation:
Let us evaluate each knitted fabric:
1. Interlock (A): A double-knit structure produced by intermeshing two rib stitches. It is a classic weft knit.
2. Rib knits (E): A standard weft knit featuring alternating face and back loops in the same course, giving high elasticity.
3. Jacquard knits (B): Complex patterned knits made on weft knitting machines (such as double jersey machines) using patterned attachments. Thus, they are classed under weft knits.
4. Tricot fabrics (D): This is the quintessential warp-knit fabric, characterized by zig-zag vertical wale patterns, used for activewear and undergarments.
5. Therefore, Tricot (D) is warp-knit, which must be excluded. The correct option representing pure weft-knit structures is (A), (B), and (E).
Step 3: Final Answer
The correct option is (B).