If a cell has has the following chromosomes and crossingover

If a cell has has the following chromosomes and crossing-over between one chromatid of each chromosome between the two genes indicated, what gametes would be produced? BL and B and bL and BI BBLL and bbll BL and bi bbLI BL and bI

Answer D : BbLI is correct when crossing over take place between BL and bI

BL X bI --------------------- BbLI