Given the Following Premises

question 2

Multiple Choice

Given the following premises:
1) P • (∼H ∨ D)
2) ∼(∼P • ∼H)
3) (P ⊃ ∼H) • (∼P ⊃ H)

• A)P ≡ ∼H 3, Equiv
• B)∼H ∨ D 1, Simp
• C)(P • ∼H) ∨ D 1, Assoc
• D)P • (H ⊃ D) 1, Impl
• E)P • H 2, DN

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Definitions:

Pentaradially Symmetrical

A form of symmetry found in some organisms, particularly sea stars, where their body can be divided into five or more equal parts.

Radially Symmetrical

An organism is described as radially symmetrical when its body structure can be sliced into symmetrical halves through any number of planes along its center.

Water Vascular System

Unique hydraulic system of echinoderms; functions in locomotion and feeding.

Echinoderms

A phylum of marine animals including starfish, sea urchins, and sea cucumbers, characterized by radial symmetry and a water vascular system.