Which syntax is correct to check the correlation between various Components by using a heatmap?

a$.$

sns$.$heatmapp$($data$\_$pca.corre$())$

b$.$

sns$.$heatmap$($data$\_$pca.corr$())$

c$.$

sns$.$heatmap$($data$\_$pca.corre$())$

d$.$

sns$.$heatmap$($data$\_$pca.correl$())$