This

Pronome

  may

Auxiliar

  be

Auxiliar

  due to

 the

 preponderance  of

Adposición

 closet-index  funds

Substantivo

  in

Adposición

  the

Determinador

  study

Substantivo

.

This may be due to the preponderance of closet-index funds in the study.

This may be due to the preponderance of closet-index funds in the study.