What do these chemical formulae for acids have in common? A. They both contain hydrogen.
B. They both contain sulfur.
C. They both contain carbon.
D. They both contain chloride.
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Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

Its the second one nonmetals are moldable and easily shaped