DLPNIRNANOEVM: Coated or Uncoated Lens ?

2513874_NIRscan_Nano_Mechanical_BOM.xlsx mentions the following part :

There is a coated and uncoated version of this lens. What is the one that is used by the EVM ?

Also, if coated, then there are 3 products on offer:

MLBB-A coating Ravg<0.5% from 350-700nm, AOI=0°  

·         MLBB-B coating Rmax<1.0%, Rtyp.<0.4% from 600-1050nm, AOI=0° 

·         MLBB-C coating Rmax<1.0%, Rtyp.<0.4% from 1050-1600nm, AOI=0°

Which one of the above is used ?

Thanks,