Binding of Histone $\mathrm{H} 1$ Proteins to Importins Is Important for Which of the Following

Binding of histone $\mathrm{H} 1$ proteins to importins is important for which of the following?

A) Transport through the nuclear pores complexes
B) Properly directed vesicular transport through the Golgi apparatus
C) Transport from the granular part of the nucleolus
D) Further binding to the "linker DNA" and proper assembly of nucleosomes
E) Phosphorylation of cyclins