$(A)\; \overrightarrow {r} = 2\hat{i} - \hat{j} +3\hat{k} \;+ \; \mu (2\hat {i} + 3 \hat{j} -2 \hat{k})$
$(B)\; \overrightarrow {r} = 2\hat{i} - \hat{j} +3\hat{k} \;- \; \mu (2\hat {i} - 3 \hat{j} +2 \hat{k})$
$(C)\; \overrightarrow {r} = 2\hat{i} - \hat{j} +3\hat{k} \;+ \; \mu (2\hat {i} - 3 \hat{j} -2 \hat{k})$
$(D)\; \overrightarrow {r} = 2\hat{i} - \hat{j} +3\hat{k} \;- \; \mu (2\hat {i} + 3 \hat{j} -2 \hat{k})$