c
(c)\(\mathop {C{H_3}}\limits^{s{p^3}}  - \mathop {{C^{s{p^3}}} - }\limits_{\mathop {|\,\,{\kern 1pt} \,\,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }\limits_{\mathop {C{H_{3\,\,\,\,\,}}}\limits_{s{p^3}\,\,} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } }^{\mathop {|{\kern 1pt} {\kern 1pt} \,\,{\kern 1pt} {\kern 1pt} \,\,{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} }\limits^{\mathop {C{H_{3\,\,\,\,\,}}}\limits^{s{p^3}\,\,} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } } OH\)

All the carbon atoms are \(s{p^3}\) hybridized.