Number of peristome teeth in the capsule of Funaria is?

A particular manufacturer sells phosphoric acid capsules as a homeopathic remedy with a concentration specified as 23X. (23X means that when averaged over many capsules, the average mass of phosphoric acid in one capsule is 10^–23 times the mass of the capsule. The rest is a carbohydrate filler....essentially a sugar pill) If each capsule has a mass of 35 mg, approximately how many capsules would you have to take to expect to ingest at least one molecule of H₃PO₄?

A. 1

B. 500

C. 50

D. 5

E. 5000

This is the full question, everything is there.

1. In the capsule cell stain, the Congo Red stain is ____.

   (select all correct answers)

   		a negative cell stain
   		the mordant.
   		an acidic cell stain.
   		a positive cell stain.
   		a basic cell stain.

2. Which of the stains used in the gram stain and capsule stain arepositive stains?

   		Crystal Violet
   		Safranin
   		Maneval's Stain
   		Congo Red