question 13: Narrow pores (less than a paper clip's diameter)?

In this section, we must indicate whether the pores are narrow, or on the contrary, large enough so that a standard paper clip can be inserted in them (check the largest pores). Narrow pores are also usually circular.
Use the paper clip trick to check whether pores are narrow or large: if a standard paper clip can be inserted in pores without excessive force, they are to be considered as large.

Exemples:

The pores are here very dense and thin, hardly distinguishable from one another; select then "yes" in this case.		The pores are here very large and not very circular; select then "no" in this case.		The pores are here very large and angular; select then "no" in this case.		The pores are here very narrow; select then "yes" in this case.
The pores are here very dense; select then "yes" in this case.		The pores are here not very narrow, although not very large either, but they are angular; select then "no" in this case.		The pores are here narrow and circular, although quite visible; select then "yes" in this case.		The pores are here very large and polygonal; select then "no" in this case.

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